
JUHA TöYRäS
Professori
Yhteystiedot
Organisaatio
Luonnontieteiden ja metsätieteiden tiedekunta, Sovelletun fysiikan laitos
Sähköposti
juha.toyras@uef.fi
Puhelin
040 355 2026
Tutkimusryhmät - UEF
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Biomedical Spectroscopy Laboratory (biomedspect)
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Biophysics of Bone and Cartilage (BBC)
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Sleep Technology and Analytics Research (STAR) Group
Julkaisut
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Pitkanen, Henna; Duce, Brett; Leppanen, Timo; Kainulainen, Samu; Kulkas, Antti; Myllymaa, Sami; Töyräs, Juha; Korkalainen, Henri. 2022. Gamma Power of Electroencephalogram Arousal is Modulated by Respiratory Event Type and Severity in Obstructive Sleep Apnea IEEE transactions on biomedical engineering [Epub ahead of print]: -. 2022
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Paakkari, Petri; Inkinen, Satu I; Honkanen, Miitu KM; Prakash, Mithilesh; Shaikh, Rubina; Nieminen, Miika T; Grinstaff, Mark W; Mäkelä, Janne TA; Töyräs, Juha; Honkanen, Juuso TJ. 2021. Quantitative dual contrast photon-counting computed tomography for assessment of articular cartilage health Scientific reports 11 1: 5556. 2021
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Afara, Isaac O; Shaikh, Rubina; Nippolainen, Ervin; Querido, William; Torniainen, Jari; Sarin, Jaakko K; Kandel, Shital; Pleshko, Nancy; Töyräs, Juha. 2021. Characterization of connective tissues using near-infrared spectroscopy and imaging Nature protocols 16 2: 1297-1329. 2021
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Virtanen, Vesa; Nippolainen, Ervin; Shaikh, Rubina; Afara, Isaac O; Töyräs, Juha; Solheim, Johanne; Tafintseva, Valeria; Zimmermann, Boris; Kohler, Achim; Saarakkala, Simo; Rieppo, Lassi. 2021. Infrared Fiber-Optic Spectroscopy Detects Bovine Articular Cartilage Degeneration Cartilage 13 Suppl 2: 285S-294S. 2021
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The effect of subchondral bone plate thickness and trabecular bone volume fraction on the mechanical behavior of cartilage in post-traumatic osteoarthritis. Orava, H; Tanska, P; Huang, L; Ojanen, SP; Mäkelä, JTA; Finnilä, MAJ; Saarakkala, S; Herzog, W; Korhonen, RK; Töyräs, J / ORS Abstracts. 2021. 2021
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Shaikh, Rubina; Nippolainen, Ervin; Virtanen, Vesa; Torniainen, Jari; Rieppo, Lassi; Saarakkala, Simo; Afara, Isaac O; Töyräs, Juha. 2021. Raman spectroscopy is sensitive to biochemical changes related to various cartilage injuries Journal of raman spectroscopy 52 4: 796-804. 2021
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Saukko, AEA; Sarin, JK; Nykänen, O; Nissi, MJ; Te Moller, NCR; Weinans, H; Mancini, IAD; Visser, J; Brommer, H; van Weeren, PR; Malda, J; Grinstaff, MW; Töyräs, J. 2021. Dual-contrast computed tomography enables detection of equine posttraumatic osteoarthritis in vitro Journal of orthopaedic research 2022; 40 3: 703-711. 2021
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Rusanen, Matias; Myllymaa, Sami; Kalevo, Laura; Myllymaa, Katja; Töyräs, Juha; Leppanen, Timo; Kainulainen, Samu. 2021. An In-Laboratory Comparison of FocusBand EEG Device and Textile Electrodes Against a Medical-Grade System and Wet Gel Electrodes IEEE access 9: 132580-132591. 2021
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Rusanen, Matias; Kainulainen, Samu; Korkalainen, Henri; Kalevo, Laura; Myllymaa, Katja; Leppanen, Timo; Toyras, Juha; Arnardottir, Erna Sif; Myllymaa, Sami. 2021. Technical Performance of Textile-Based Dry Forehead Electrodes Compared With Medical-Grade Overnight Home Sleep Recordings IEEE access 9: 157902 - 157915. 2021
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Ristaniemi, Aapo; Torniainen, Jari; Paakkonen, Tommi; Stenroth, Lauri; Finnilä, Mikko A.J.; Tanska, Petri; Töyräs, Juha; Korhonen, Rami K.. 2021. Biomechanical, biochemical, and near infrared spectral data of bovine knee ligaments and patellar tendon Data in brief 36: 106976. 2021
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Ristaniemi, Aapo; Regmi, Dristi; Mondal, Diponkor; Torniainen, Jari; Tanska, Petri; Stenroth, Lauri; Finnilä, Mikko AJ; Töyräs, Juha; Korhonen, Rami K. 2021. Structure, composition and fibril-reinforced poroviscoelastic properties of bovine knee ligaments and patellar tendon Journal of the royal society interface 18 174: 20200737. 2021
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Rissanen, M; Oksenberg, A; Töyräs, J; Myllymaa, S; Leppänen, T. 2021. Total durations of respiratory events are modulated within REM and NREM sleep by sleeping position and obesity in OSA patients Sleep medicine 81: 394-400. 2021
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Sarin, Jaakko K; Te Moller, Nikae Cr; Mohammadi, Ali; Prakash, Mithilesh; Torniainen, Jari; Brommer, Harold; Nippolainen, Ervin; Shaikh, Rubina; Mäkelä, Janne Ta; Korhonen, Rami K; René van Weeren, P; Afara, Isaac O; Töyräs, Juha. 2021. Machine learning augmented near-infrared spectroscopy: In vivo follow-up of cartilage defects Osteoarthritis and cartilage 29 3: 423-432. 2021
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Nissinen, Mikko T; Hänninen, Nina; Prakash, Mithilesh; Mäkelä, Janne TA; Nissi, Mikko J; Töyräs, Juha; Nieminen, Miika T. Korhonen, Rami K; Tanska, Petri. 2021. Functional and Structural Properties of Human Patellar Articular Cartilage in Osteoarthritis Journal of biomechanics 126: 110634. 2021
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Karhu, Tuomas; Myllymaa, Sami; Nikkonen, Sami; Mazzotti, Diego R; Töyräs, Juha; Leppänen, Timo. 2021. Longer and Deeper Desaturations Are Associated With the Worsening of Mild Sleep Apnea: The Sleep Heart Health Study Frontiers in neuroscience 15: 657126. 2021
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Nikkonen, Sami; Korkalainen, Henri; Leino, Akseli; Myllymaa, Sami; Duce, Brett; Leppänen, Timo; Töyräs, Juha. 2021. Automatic Respiratory Event Scoring in Obstructive Sleep Apnea Using a Long Short-Term Memory Neural Network IEEE journal of biomedical and health informatics 25 8: 2917-2927. 2021
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Bolcos, Paul O; Mononen, Mika E; Roach, Koren E; Tanaka, Matthew S; Suomalainen, Juha-Sampo; Mikkonen, Santtu; Nissi, Mikko J; Töyräs, Juha; Link, Thomas M; Souza, Richard B; Majumdar, Sharmila; Ma, C Benjamin; Li, Xiaojuan; Korhonen, Rami K. 2021. Subject-specific biomechanical analysis to estimate locations susceptible to osteoarthritis - Finite element modeling and MRI follow-up of ACL reconstructed patients Journal of orthopaedic research [ePub ahead of print 24 Nov 2021]: 1-12. 2021
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Huttunen, R; Leppänen, T; Duce, B; Oksenberg, A; Myllymaa, S; Töyräs, J; Korkalainen, H. 2021. Assessment of Obstructive Sleep Apnea-Related Sleep Fragmentation Utilizing Deep Learning-Based Sleep Staging from Photoplethysmography Sleep 44 10: zsab142. 2021
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Kainulainen, S; Töyräs, J; Leppänen, T. 2021. Auttaako teknologia uniongelmiin? Tekniikan maailma 17: 68-72. 2021
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Karhu, T; Myllymaa, S; Nikkonen, S; Mazzotti, DR; Kulkas, A; Töyräs, J; Leppänen, T. 2021. Diabetes and cardiovascular diseases are associated with the worsening of intermittent hypoxaemia Journal of sleep research 2022; 31 1: e13441. 2021
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Khan, Bilour; Kafian-Attari, Iman; Nippolainen, Ervin; Shaikh, Rubina; Semenov, Dmitry; Hauta-Kasari, Markku; Töyräs, Juha; Afara, Isaac O.. 2021. Articular cartilage optical properties in the near-infrared (NIR) spectral range vary with depth and tissue integrity Biomedical optics express 12 10: 6066-6080. 2021
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Korkalainen, Henri; Leppänen, Timo; Duce, Brett; Kainulainen, Samu; Aakko, Juhani; Leino, Akseli; Kalevo, Laura; Afara, Isaac O; Myllymaa, Sami; Töyräs, Juha. 2021. Detailed assessment of sleep architecture with deep learning and shorter epoch-to-epoch duration reveals sleep fragmentation of patients with obstructive sleep apnea IEEE journal of biomedical and health informatics 25 7: 2567-2574. 2021
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Korkalainen, Henri; Nikkonen, Sami; Kainulainen, Samu; Dwivedi, Amit Krishna; Myllymaa, Sami; Leppänen, Timo; Töyräs, Juha. 2021. Self-Applied Home Sleep Recordings: The Future of Sleep Medicine Sleep medicine clinics 16 4: 545-556. 2021
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Leino, Akseli; Nikkonen, Sami; Kainulainen, Samu; Korkalainen, Henri; Töyräs, Juha; Myllymaa, Sami; Leppänen, Timo; Ylä-Herttuala, Salla; Westeren-Punnonen, Susanna; Muraja-Murro, Anu; Jäkälä, Pekka; Mervaala, Esa; Myllymaa, Katja. 2021. Neural network analysis of nocturnal SpO2 signal enables easy screening of sleep apnea in patients with acute cerebrovascular disease Sleep medicine 79: 71-78. 2021
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Leppänen, Timo; Myllymaa, Sami; Kulkas, Antti; Töyräs, Juha. 2021. Beyond the apnea-hypopnea index: alternative diagnostic parameters and machine learning solutions for estimation of sleep apnea severity Sleep 44 9: 1 - 3. 2021
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Li, Mao; Venäläinen, Mikko S; Chandra, Shekhar S; Patel, Rushabh; Fripp, Jurgen; Engstrom, Craig; Korhonen, Rami K; Töyräs, Juha; Crozier, Stuart. 2020. Discrete element and finite element methods provide similar estimations for hip joint contact mechanics during walking gait Journal of biomechanics 115: 110163. 2020
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Nikkonen, Sami; Korkalainen, Henri; Kainulainen, Samu; Myllymaa, Sami; Leino, Akseli; Kalevo, Laura; Oksenberg, Arie; Leppänen, Timo; Töyräs, Juha. 2020. Estimating daytime sleepiness with previous night EEG, EOG and EMG spectrograms in patients with suspected sleep apnea using a convolutional neural network Sleep 43 12: zsaa106. 2020
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Mid-infrared and Near infrared spectroscopic analysis of mechanically and enzymatically damaged cartilage. Nippolainen, Ervin; Shaikh, Rubina; Virtanen, Vesa; Rieppo, Lassi; Afara, Isaac; Saarakkala, Simo; Töyräs, Juha / Proceedings Biophotonics Congress: Optics in the Life Sciences Congress 2019. 2020. 2020
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Mid-infrared spectroscopic assessment of cartilage degeneration. Shaikh, Rubina; Nippolainen, Ervin; Virtanen, Vesa; Rieppo, Lassi; Haas, Julian; Mizaikoff, Boris; Artyushenko, Viacheslav; Bibikova, Olga; Afara, Isaac; Saarakkala, Simo; Töyräs, Juha / Proceedings Biophotonics Congress: Optics in the Life Sciences Congress 2019. 2020. 2020
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Mohammadi, Ali; Myller, Katariina A H; Tanska, Petri; Hirvasniemi, Jukka; Saarakkala, Simo; Töyräs, Juha; Korhonen, Rami K; Mononen, Mika E. 2020. Rapid CT-based Estimation of Articular Cartilage Biomechanics in the Knee Joint Without Cartilage Segmentation Annals of biomedical engineering 48: 2965-2975. 2020
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Myller, KAH; Korhonen, R; Töyräs, J; Tanska, P; Väänänen, S; Jurvelin, JS; Saarakkala, S; Mononen, ME. 2020. Clinical Contrast-enhanced Computed Tomography with Semiautomatic Segmentation Provides Feasible Input for Computational Models of the Knee Joint Journal of biomechanical engineering: transactions of the ASME 142 5: 051001. 2020
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Xu, Wujun; Cui, Pang; Happonen, Emilia; Leppänen, Jukka; Liu, Lizhi; Rantanen, Jimi; Majda, Dorota; Saukko, Annina; Thapa, Rinez; Nissinen, Tuomo; Tynkkynen, Tuulia; Töyräs, Juha; Fan, Li; Liu, Wenchao; Lehto, Vesa-Pekka. 2020. Tailored Synthesis of PEGylated Bismuth Nanoparticles for X-ray Computed Tomography and Photothermal Therapy: One-Pot, Targeted Pyrolysis, and Self-Promotion Acs applied materials and interfaces 12 42: 47233-47244. 2020
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Nippolainen, Ervin; Shaikh, Rubina; Virtanen, Vesa; Rieppo, Lassi; Saarakkala, Simo; Töyräs, Juha; Afara, Isaac. 2020. Near Infrared Spectroscopy Enables Differentiation of Mechanically and Enzymatically Induced Cartilage Injuries Annals of biomedical engineering 48 9: 2343-2353. 2020
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Nykänen, Olli; Leskinen, Henri P P; Finnilä, Mikko; Karhula, Sakari S; Turunen, Mikael J; Töyräs, Juha; Saarakkala, Simo; Nissi, Mikko J. 2020. Bright ultra-short echo time SWIFT MRI signal at the osteochondral junction is not located in the calcified cartilage Journal of orthopaedic research 38 12: 2649-2656. 2020
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Optical properties of articular cartilage in the near-infrared spectral range are related to its proteoglycan content. Kafian-Attari, Iman; Semenov, Dmitry; Nippolainen, Ervin; Hauta-Kasari, Markku; Töyräs, Juha; Afara, Isaac O / Proceedings Volume 11363, Tissue Optics and Photonics. 2020. 2020
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Ristaniemi, A; Torniainen, J; Stenroth, L; Finnilä, MAJ; Paakkonen, T; Töyräs, J; Korhonen, RK. 2020. Comparison of water, hydroxyproline, uronic acid and elastin contents of bovine knee ligaments and patellar tendon and their relationships with biomechanical properties Journal of the mechanical behavior of biomedical materials 104: 103639. 2020
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Te Moller, Nikae CR; Mohammadi, Ali; Plomp, Saskia; Serra Bragança, Filipe M; Beukers, Martijn; Pouran, Behdad; Afara, Isaac O; Nippolainen, Ervin; Mäkelä, Janne TA; Korhonen, Rami K; Töyräs, Juha; Brommer, Harold; René van Weeren, P. 2020. Structural, compositional, and functional effects of blunt and sharp cartilage damage on the joint: a 9-month equine groove model study Journal of orthopaedic research 2021; 39 11: 2363-2375. 2020
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Torniainen, J; Afara, IO; Prakash, M; Sarin, JK; Stenroth, L; Töyräs, J. 2020. Open-source python module for automated preprocessing of near infrared spectroscopic data Analytica chimica acta 1108: 1-9. 2020
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Leino, A; Westeren-Punnonen, S; Töyräs, J; Myllymaa, S; Leppänen, T; Ylä-Herttuala, S; Muraja-Murro, A; Kantanen, AM; Autere, J; Jäkälä, P; Mervaala, E; Myllymaa, K. 2020. Acute stroke and TIA patients have specific polygraphic features of obstructive sleep apnea Sleep and breathing 24 4: 1495-1505. 2020
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Leppänen, T; Kulkas, A; Töyräs, J; Myllymaa, S; Gadoth, N; Oksenberg, A. 2020. Polysomnographic characteristics of severe obstructive sleep apnea vary significantly between hypertensive and normotensive patients of both genders Sleep and breathing 2021; 25 1: 105-116. 2020
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Husso, Minna; Afara, Isaac O; Nissi, Mikko J; Kuivanen, Antti; Halonen, Paavo; Tarkia, Miikka; Teuho, Jarmo; Saunavaara, Virva; Vainio, Pauli; Sipola, Petri; Manninen, Hannu; Ylä-Herttuala, Seppo; Knuuti, Juhani; Töyräs, Juha. 2020. Quantification of Myocardial Blood Flow by Machine Learning Analysis of Modified Dual Bolus MRI Examination Annals of biomedical engineering 2021; 49: 653-662. 2020
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Kulkas, Antti; Duce, Brett; Töyräs, Juha; Seppä, Juha; Leppänen, Timo. 2020. Comparison of the effect of weight change, simulated computational continuous positive airway pressure treatment and positional therapy on severity of sleep apnea Journal of sleep research 2021; 30 2: e13070. 2020
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Duce, Brett; Kulkas, Antti; Töyräs, Juha; Terrill, Philip; Hukins, Craig. 2020. Longer duration electroencephalogram arousals have a better relationship with impaired vigilance and health status in obstructive sleep apnoea Sleep and breathing 2021; 25 1: 263-270. 2020
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Afara, Isaac O; Sarin, Jaakko K; Ojanen, Simo; Finnilä, Mikko A J; Herzog, Walter; Saarakkala, Simo; Korhonen Rami K; Töyräs, Juha. 2020. Machine Learning Classification of Articular Cartilage Integrity Using Near Infrared Spectroscopy Cellular and molecular bioengineering 13 3: 219-228. 2020
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Ala-Myllymäki, Juho; Paakkonen, Tommi; Joukainen, Antti; Kröger, Heikki; Lehenkari, Petri; Töyräs, Juha; Afara, Isaac O. 2020. Near-Infrared Spectroscopy for Mapping of Human Meniscus Biochemical Constituents Annals of biomedical engineering 2021; 49: 469-476. 2020
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Automated Preprocessing of Near Infrared Spectroscopic Data. Torniainen, J; Afara, IO; Prakash, M; Sarin, JK; Stenroth, L; Töyräs, J / Bio-Optics: Design and Application 2019. 2020. 2020
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Korkalainen, H; Aakko, J; Duce, B; Kainulainen, S; Leino, A; Nikkonen, S; Afara, I O; Myllymaa, S; Töyräs, J; Leppänen, T. 2020. Deep learning enables sleep staging from photoplethysmogram for patients with suspected sleep apnea Sleep 43 11: zsaa098. 2020
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Bhattarai, Abhisek; Pouran, Behdad; Mäkelä, Janne T A; Shaikh, Rubina; Honkanen, Miitu K M; Prakash, Mithilesh; Kröger, Heikki; Grinstaff, Mark W; Weinans, Harrie; Jurvelin, Jukka S; Töyräs, Juha. 2020. Dual Contrast in Computed Tomography Allows Earlier Characterization of Articular Cartilage over Single Contrast Journal of orthopaedic research 38 10: 2230-2238. 2020
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Bolcos, PO; Mononen, ME; Tanaka, MS; Yang, M; Suomalainen, JS; Nissi, MJ; Töyräs, J; Ma, B; Li, X; Korhonen, RK. 2020. Identification of locations susceptible to osteoarthritis in patients with anterior cruciate ligament reconstruction: Combining knee joint computational modelling with follow-up T1p and T2 imaging Clinical biomechanics 79: 104844. 2020
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Bhattarai, Abhisek; Mäkelä, Janne T A; Pouran, Behdad; Kröger, Heikki; Weinans, Harrie; Grinstaff, Mark W; Töyräs, Juha; Turunen, Mikael J. 2020. Effects of Human Articular Cartilage Constituents on Simultaneous Diffusion of Cationic and Non-ionic Contrast Agents Journal of orthopaedic research 2021; 39 4: 771-779. 2020
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Hietakoste, Salla; Korkalainen, Henri; Kainulainen, Samu; Sillanmäki, Saara; Nikkonen, Sami; Myllymaa, Sami; Duce, Brett; Töyräs, Juha; Leppänen, Timo. 2020. Longer apneas and hypopneas are associated with greater ultra-short-term HRV in obstructive sleep apnea Scientific reports 10: 21556. 2020
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Kafian-Attari, Iman; Nippolainen, Ervin; Semenov, Dmitry; Hauta-Kasari, Markku; Töyräs, Juha; Afara, Isaac O. 2020. Tissue optical properties combined with machine learning enables estimation of articular cartilage composition and functional integrity Biomedical optics express 11 11: 6480-6494. 2020
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Kainulainen, S; Duce, B; Korkalainen, H; Oksenberg, A; Leino, A; Arnardottir, E; Kulkas, A; Myllymaa, S; Töyräs, J; Leppänen, T. 2020. Severe Desaturations Increase PVT-based Median Reaction Time and Number of Lapses in OSA Patients European respiratory journal 55: 1901849. 2020
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Kainulainen, Samu; Duce, Brett; Korkalainen, Henri; Leino, Akseli; Huttunen, Riku; Kalevo, Laura; Arnardottir, Erna S; Kulkas, Antti; Myllymaa, Sami; Töyräs, Juha; Leppänen, Timo. 2020. Increased nocturnal arterial pulsation frequencies of obstructive sleep apnoea patients is associated with an increased number of lapses in a psychomotor vigilance task ERJ open research 6 4: 00277-202. 2020
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Kainulainen, Samu; Töyräs, Juha; Oksenberg, Arie; Korkalainen, Henri; Afara, Isaac O; Leino, Akseli; Kalevo, Laura; Nikkonen, Sami; Gadoth, Natan; Kulkas, Antti; Myllymaa, Sami; Leppänen, Timo. 2020. Power spectral densities of nocturnal pulse oximetry signals differ in OSA patients with and without daytime sleepiness Sleep medicine 73: 231-237. 2020
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Kajabi, Abdul Wahed; Casula, Victor; Sarin, Jaakko K; Ketola, Juuso H; Nykänen, Olli; Te Moller, Nikae C R; Mancini, Irina A D; Visser, Jetze; Brommer, Harold; René van Weeren, P; Malda, Jos; Töyräs, Juha; Nieminen, Miika T; Nissi, Mikko J. 2020. Evaluation of articular cartilage with quantitative MRI in an equine model of post-traumatic osteoarthritis Journal of orthopaedic research 2021; 39 1: 63-73. 2020
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Kalevo, Laura; Miettinen, Tomi; Leino, Akseli; Kainulainen, Samu; Korkalainen, Henri; Myllymaa, Katja; Töyräs, Juha; Leppänen, Timo; Laitinen, Tiina; Myllymaa, Sami. 2020. Effect of sweating on electrode-skin contact impedances and artifacts in EEG recordings with various screen-printed Ag/Agcl electrodes IEEE access 8: 50934-50943. 2020
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Oksenberg, A; Gadoth, N; Töyräs, J; Leppänen, T. 2019. Prevalence and characteristics of positional obstructive sleep apnea (POSA) in patients with severe OSA Sleep and breathing 2020; 24 2: 551-559. 2019
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Nikkonen, S; Afara, IO; Leppänen, T; Töyräs, J. 2019. Artificial neural network analysis of the oxygen saturation signal enables accurate diagnostics of sleep apnea Scientific reports 9 1: 13200. 2019
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Nikkonen, S; Töyräs, J; Mervaala, E; Myllymaa, S; Terrill, P; Leppänen, T. 2019. Intra-night variation in apnea-hypopnea index affects diagnostics and prognostics of obstructive sleep apnea Sleep and breathing 2020; 24: 379-386. 2019
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Nykänen, O; Sarin, JK; Ketola, JH; Leskinen, H; te Moller, NCR; Tiitu, V; Mancini, IAD; Visser, J; Brommer, H; van Weeren, P René; Malda, J; Töyräs, J; Nissi, MJ. 2019. T2* and quantitative susceptibility mapping in an equine model of post-traumatic osteoarthritis: assessment of mechanical and structural properties of articular cartilage Osteoarthritis and cartilage 27 10: 1481-1490. 2019
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Saukko, AEA; Turunen, MJ; Honkanen, MKM; Lovric, G; Tiitu, V; Honkanen, JTJ; Grinstaff, MW; Jurvelin, JS; Töyräs, J. 2019. Simultaneous Quantitation of Cationic and Non-ionic Contrast Agents in Articular Cartilage Using Synchrotron MicroCT Imaging Scientific reports 9 1: 7118. 2019
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Prakash, M; Joukainen, A; Torniainen, J; Honkanen, MKM; Rieppo, L; Afara, IO; Kröger, H; Töyräs, J; Sarin, JK. 2019. Near infrared spectroscopy enables quantitative evaluation of human cartilage biomechanical properties during arthroscopy Osteoarthritis and cartilage 27 8: 1235-1243. 2019
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Sarin, JK; Nykänen, O; Tiitu, V; Mancini, IAD; Brommer, H; Visser, J; Malda, J; van Weeren, PR; Afara, IO; Töyräs, J. 2019. Arthroscopic Determination of Cartilage Proteoglycan Content and Collagen Network Structure with Near-Infrared Spectroscopy Annals of biomedical engineering 47 8: 1815-1826. 2019
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Sarin, JK; Torniainen, J; Prakash, M; Rieppo, L; Afara, IO; Töyräs, J. 2019. Dataset on equine cartilage near infrared spectra, composition, and functional properties Scientific data 6 1: 164. 2019
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Miettinen, T; Myllymaa, K; Muraja-Murro, A; Westeren-Punnonen, S; Hukkanen, T; Töyräs, J; Lappalainen, R; Mervaala, E; Sipilä, K; Myllymaa, S. 2019. Polysomnographic scoring of sleep bruxism events is accurate even in the absence of video recording but unreliable with EMG-only setups Sleep and breathing [First Online: 12 August 2019]: 1-12. 2019
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Myller, KAH; Korhonen, RK; Töyräs, J; Salo, J; Jurvelin, JS; Venäläinen, MS. 2019. Computational evaluation of altered biomechanics related to articular cartilage lesions observed in vivo Journal of orthopaedic research 37 5: 1042-1051. 2019
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Stenroth, Lauri; Sefa, Sandra; Arokoski, Jari; Töyräs, Juha. 2019. Does Magnetic Resonance Imaging Provide Superior Reliability for Achilles and Patellar Tendon Cross-Sectional Area Measurements Compared with Ultrasound Imaging? Ultrasound in medicine and biology 45 12: 3186-3198. 2019
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Mancini, IAD; Rieppo, L; Pouran, B; Afara, IO; Braganca, FMS; van Rijen, MHP; Kik, M; Weinans, H; Toyras, J; van Weeren, PR; Malda, J. 2019. Effects of body mass on microstructural features of the osteochondral unit: A comparative analysis of 37 mammalian species Bone 127: 664-673. 2019
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Honkanen, MKM; Saukko, AEA; Turunen, MJ; Xu, W; Lovric, G; Honkanen, JTJ; Grinstaff, MW; Lehto, VP; Töyräs, J. 2019. Triple Contrast CT Method Enables Simultaneous Evaluation of Articular Cartilage Composition and Segmentation Annals of biomedical engineering 2020; 48 2: 556-567. 2019
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Leppänen, Timo; Kulkas, Antti; Töyräs, Juha. 2019. The hypoxic burden: also known as the desaturation severity parameter European heart journal 40 35: 2991-2993. 2019
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Honkanen, MKM; Matikka, H; Honkanen, JTJ; Bhattarai, A; Grinstaff, MW; Joukainen, A; Kröger, H; Jurvelin, JS; Töyräs, J. 2019. Imaging of Proteoglycan and Water Contents in Human Articular Cartilage with Full-Body CT Using Dual Contrast Technique Journal of orthopaedic research 37 5: 1059-1070. 2019
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Honkanen, MKM; Saukko, AEA; Turunen, MJ; Shaikh, R; Prakash, M; Lovric, G; Joukainen, A; Kröger, H; Grinstaff, MW; Töyräs, J. 2019. Synchrotron microCT reveals the potential of the dual contrast technique for quantitative assessment of human articular cartilage composition Journal of orthopaedic research 2020; 38 3: 563-573. 2019
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Garcia, João P; Longoni, Alessia; Gawlitta, Debby; Rosenberg, Antoine J W P; Grinstaff, Mark W; Töyräs, Juha; Weinans, Harrie; Creemers, Laura B; Pouran, Behdad. 2019. Contrast enhanced computed tomography for real-time quantification of glycosaminoglycans in cartilage tissue engineered constructs Acta biomaterialia 100: 202-212. 2019
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Husso, M; Nissi, MJ; Kuivanen, A; Halonen, P; Tarkia, M; Teuho, J; Saunavaara, V; Vainio, P; Sipola, P; Manninen, H; Ylä-Herttuala, S; Knuuti, J; Töyräs, J. 2019. Quantification of porcine myocardial perfusion with modified dual bolus MRI - a prospective study with a PET reference Bmc medical imaging 19 1: 58. 2019
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Kainulainen, S; Töyräs, J; Oksenberg, A; Korkalainen, H; Sefa, S; Kulkas, A; Leppänen, T. 2019. Severity of desaturations reflects OSA-related daytime sleepiness better than AHI Journal of clinical sleep medicine 15 8: 1135-1142. 2019
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Kalevo, Laura; Miettinen, Tomi; Leino, Akseli; Kainulainen, Samu; Myllymaa, Katja; Toyras, Juha; Leppanen, Timo; Myllymaa, Sami. 2019. Improved Sweat Artifact Tolerance of Screen-Printed EEG Electrodes by Material Selection-Comparison of Electrochemical Properties in Artificial Sweat IEEE access 7: 133237-133247. 2019
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Korkalainen, H; Töyräs, J; Nikkonen, S; Leppänen, T. 2019. Mortality-risk-based apnea-hypopnea index thresholds for diagnostics of obstructive sleep apnea Journal of sleep research 28 6: e12855. 2019
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Korkalainen, Henri; Aakko, Juhani; Nikkonen, Sami; Kainulainen, Samu; Leino, Akseli; Duce, Brett; Afara, Isaac Oluwaseun; Myllymaa, Sami; Töyräs, Juha; Leppänen, Timo. 2019. Accurate Deep Learning-Based Sleep Staging in a Clinical Population with Suspected Obstructive Sleep Apnea IEEE journal of biomedical and health informatics 24 7: 2073-2081. 2019
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Near-infrared spectroscopy based arthroscopic evaluation of human knee joint cartilage, through automated selection of an anatomically specific regression model. Prakash, Mithilesh; Joukainen, Antti; Sarin, Jaakko; Rieppo, Lassi; Afara, Isaac; Töyräs, Juha / Optical Tomography and Spectroscopy 2018. 2018. 2018
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Torniainen, Jari; Ristaniemi, Aapo; Sarin, Jaakko K; Mikkonen, Santtu; Afara, Isaac O; Stenroth, Lauri; Korhonen, Rami K; Töyräs, Juha. 2018. Near Infrared Spectroscopic Evaluation of Ligament and Tendon Biomechanical Properties ANNALS OF BIOMEDICAL ENGINEERING 2019; 47 1: 213-222. 2018
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Spectroscopic Evaluation of Post-Traumatic Osteoarthritis in Shetland Ponies. Sarin, Jaakko K; te Moller, Nikae; Brommer, Harold; van Weeren, René; Mancini, Irina; Malda, Josa; Afara, Isaac O; Töyräs, Juha / Optical Tomography and Spectroscopy 2018. 2018. 2018
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Sarin, Jaakko K; Te Moller, Nikae CR; Mancini, Irina AD; Brommer, Harold; Visser, Jetze; Malda, Jos; van Weeren, PR; Afara, Isaac O; Töyräs, Juha. 2018. Arthroscopic near infrared spectroscopy enables simultaneous quantitative evaluation of articular cartilage and subchondral bone in vivo Scientific reports 8 1: 13409. 2018
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Ryynänen, Olli-Pekka; Leppänen, Timo; Kekolahti, Pekka; Mervaala, Esa; Töyräs, Juha. 2018. Bayesian Network Model to Evaluate the Effectiveness of Continuous Positive Airway Pressure Treatment of Sleep Apnea Healthcare Informatics Research 24 4: 346-358. 2018
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Prakash, M; Sarin, JK; Rieppo, L; Afara IO; Töyräs, J. 2018. Accounting for spatial dependency in multivariate spectroscopic data CHEMOMETRICS AND INTELLIGENT LABORATORY SYSTEMS 182: 166-171. 2018
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Pouran, Behdad; Arbabi, Vahid; Bajpayee, Ambika G; van Tiel, Jasper; Töyras, Juha; Jurvelin, Jukka S; Malda, Jos; Zadpoor, Amir A; Weinans, Harrie. 2018. Multi-scale imaging techniques to investigate solute transport across articular cartilage JOURNAL OF BIOMECHANICS 78: 10-20. 2018
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Nykänen, O; Rieppo, L; Töyräs, J; Kolehmainen, V; Saarakkala, S; Shmueli, K; Nissi, MJ. 2018. Quantitative susceptibility mapping of articular cartilage: Ex vivo findings at multiple orientations and following different degradation treatments Magnetic resonance in medicine 80 6: 2702-2716. 2018
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Near-infrared spectroscopy: A potential tool for mapping meniscus properties. Ala-Myllymäki, Juho P.; Töyräs, Juha; Afara, Isaac O. / Biophotonics Congress: Biomedical Optics Congress 2018 (Microscopy/Translational/Brain/OTS). 2018. 2018
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Miettinen, Tomi; Myllymaa, Katja; Hukkanen, Taina; Töyräs, Juha; Sipilä, Kirsi; Myllymaa, Sami. 2018. Home Polysomnography Reveals a First-Night Effect in Patients With Low Sleep Bruxism Activity Journal of clinical sleep medicine 14 8: 1377-1386. 2018
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Myller, Katariina AH; Honkanen, Juuso TJ; Jurvelin, Jukka S; Saarakkala, Simo; Töyräs, Juha; Väänänen, Sami P. 2018. Method for Segmentation of Knee Articular Cartilages Based on Contrast-Enhanced CT Images Annals of biomedical engineering 46 11: 1756-1767. 2018
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Leppänen, Timo; Kulkas, Antti; Oksenberg, Arie; Duce, Brett; Mervaala, Esa; Töyräs, Juha. 2018. Differences in arousal probability and duration after apnea and hypopnea events in adult obstructive sleep apnea patients PHYSIOLOGICAL MEASUREMENT 39 11: 114004. 2018
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Leppänen, Timo; Kulkas, Antti; Mervaala, Esa; Töyräs, Juha. 2018. Increase in Body Mass Index Decreases Duration of Apneas and Hypopneas in Obstructive Sleep Apnea Respiratory care 2019; 64 1: 77-84. 2018
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Kulkas, Antti; Nikkonen, Sami; Töyräs, Juha; Mervaala, Esa; Leppänen, Timo. 2018. Simulation of Required CPAP Usage to Normalize AHI in Obstructive Sleep Apnea Patients. Teoksessa: Lhotska, L; Sukupova, L; Lackovic, I; Ibbott, G (toim.), World Congress on Medical Physics and Biomedical Engineering 2018, June 3-8, 2018, Prague, Czech Republic (Vol.2). Springer. IFMBE Proceedings 68/2. s. 129-132. 2018
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Kulkas, Antti; Leppänen, Timo; Nikkonen, Sami; Oksenberg, Arie; Duce, Brett; Mervaala, Esa; Töyräs, Juha. 2018. Required CPAP usage time to normalize AHI in obstructive sleep apnea patients: a simulation study PHYSIOLOGICAL MEASUREMENT 39 11: 115009. 2018
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Estimating Mechanical Properties of Bovine Knee Ligaments and Tendons with Near Infrared Spectroscopy. Torniainen, Jari E; Ristaniemi, Aapo; Stenroth, Lauri; Töyräs, Juha / Biophotonics Congress: Biomedical Optics Congress 2018 (Microscopy/Translational/Brain/OTS). 2018. 2018
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Deep Learning Classification of Cartilage Integrity Using Near Infrared Spectroscopy. Afara, Isaac O.; Sarin, Jaakko K.; Ojanen, Simo; Finnilä, Mikko; Herzog, Walter; Saarakkala, Simo; Korhonen, Rami; Töyräs, Juha / Biophotonics Congress: Biomedical Optics Congress 2018 (Microscopy/Translational/Brain/OTS). 2018. 2018
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Bolcos, PO; Mononen, ME; Mohammadi, A; Ebrahimi, M; Tanaka, MS; Samaan, MA; Souza, RB; Li, X; Suomalainen, JS; Jurvelin, JS; Töyräs, J; Korhonen, RK. 2018. Comparison between kinetic and kinetic-kinematic driven knee joint finite element models Scientific Reports 8: 17351. 2018
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Bhattarai, A; Honkanen, JTJ; Myller, KAH; Prakash, M; Korhonen M; Saukko, AEA; Virén, T; Joukainen, A; Patwa, AN; Kröger, H; Grinstaf, MW; Jurvelin, JS; Töyräs, J;. 2018. Quantitative Dual Contrast CT Technique for Evaluation of Articular Cartilage Properties Annals of biomedical engineering 46 7: 1038-1046. 2018
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Afara, IO; Florea, C; Olumegbon, IA; Eneh, CT; Malo, MKH; Korhonen, RK; Töyräs, J. 2018. Characterizing human subchondral bone properties using near-infrared (NIR) spectroscopy Scientific Reports 8 1: 9733. 2018
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Rohrbach D, Inkinen SI, Zatloukalová J, Kadow-Romacker A, Joukainen A, Malo MK, Mamou J, Töyräs J, Raum K. 2017. Regular chondrocyte spacing is a potential cause for coherent ultrasound backscatter in human articular cartilage. The Journal of the Acoustical Society of America 141 5: 3105-3116. 2017
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Prakash M, Sarin JK, Rieppo L, Afara IO, Töyräs J. 2017. Optimal Regression Method for Near-Infrared Spectroscopic Evaluation of Articular Cartilage. APPLIED SPECTROSCOPY 71 10: 2253-2262. 2017
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Rieppo L, Kokkonen HT, Kulmala KAM, Kovanen V, Lammi MJ, Töyräs J, Saarakkala S. 2017. Infrared microspectroscopic determination of collagen cross-links in articular cartilage Journal of Biomedical Optics 22 3: 035007. 2017
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Viren T, Honkanen JT, Danso EK, Rieppo L, Korhonen RK, Töyräs J. 2017. Ultrasound Assessment of Human Meniscus. ULTRASOUND IN MEDICINE AND BIOLOGY 43 9: 1753-1763. 2017
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Sarin Jaakko K, Rieppo Lassi, Brommer Harold, Afara Isaac O, Saarakkala Simo, Töyräs Juha. 2017. Combination of optical coherence tomography and near infrared spectroscopy enhances determination of articular cartilage composition and structure. Scientific Reports 7 1: 10586. 2017
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Sarin Jaakko Kalevi, Brommer Harold, Argüelles David, Puhakka Pia Henriikka, Inkinen Satu Irene, Afara Isaac Oluwaseun, Saarakkala Simo, Töyräs Juha. 2017. Multimodality scoring of chondral injuries in the equine fetlock joint ex vivo. OSTEOARTHRITIS AND CARTILAGE 25 5: 790-798. 2017
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Sarin JK, Brommer H, Argüelles D, Puhakka PH, Inkinen SI, Afara IO, Saarakkala S, Töyräs J. 2017. Corrigendum to "Multimodality scoring of chondral injuries in the equine fetlock joint ex vivo" [Osteoarthritis Cartilage 25 (5) (2017 May) 790-798]. Osteoarthritis and cartilage 25 8: 1377-1378. 2017
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Saukko Annina EA, Honkanen Juuso TJ, Xu Wujun, Väänänen Sami P, Jurvelin Jukka S, Lehto Vesa-Pekka, Töyräs Juha. 2017. Dual Contrast CT Method Enables Diagnostics of Cartilage Injuries and Degeneration Using a Single CT Image. ANNALS OF BIOMEDICAL ENGINEERING 45 12: 2857-2866. 2017
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Miettinen T, Myllymaa K, Westeren-Punnonen S, Ahlberg J, Hukkanen T, Töyräs J, Lappalainen R, Mervaala E, Sipilä K, Myllymaa S. 2017. Success Rate and Technical Quality of Home Polysomnography with Self-Applicable Electrode Set in Subjects with Possible Sleep Bruxism IEEE journal of biomedical and health informatics 120; 22 4: 1124-1132. 2017
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Muraja-Murro Anu, Nieminen Outi, Julkunen Petro, Töyräs Juha, Laitinen Tomi, Mervaala Esa. 2017. Peri-apneic hemodynamic reactions in obstructive sleep apnea. PATHOPHYSIOLOGY 24 3: 197-203. 2017
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Ojanen X, Tanska P, Malo MKH, Isaksson H, Väänänen SP, Koistinen AP, Grassi L, Magnusson SP, Ribel-Madsen SM, Korhonen RK, Jurvelin JS, Töyräs J. 2017. Tissue viscoelasticity is related to tissue composition but may not fully predict the apparent-level viscoelasticity in human trabecular bone - An experimental and finite element study. JOURNAL OF BIOMECHANICS 65: 96-105. 2017
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Miettinen T, Myllymaa K, Westeren-Punnonen S, Ahlberg J, Hukkanen T, Töyräs J, Lappalainen R, Mervaala E, Sipilä K, Myllymaa S. 2017. At-home quantification of sleep characteristics with self-applicable facial electrode set. SLEEP MEDICINE 40 Supplement 1: e233-e234. 2017
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Majda D, Bhattarai A, Riikonen J, Napruszewska BD, Zimowska M, Michalik-Zym A, Töyräs J, Lehto V-P. 2017. New approach for determining cartilage pore size distribution: NaCl-thermoporometry. Microporous and Mesoporous Materials 241: 238-245. 2017
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Leppänen Timo, Töyräs Juha, Mervaala Esa, Penzel Thomas, Kulkas Antti. 2017. Severity of individual obstruction events increases with age in patients with obstructive sleep apnea. SLEEP MEDICINE 37: 32-37. 2017
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Lasanen, R; Malo, MKH; Airaksinen, O; Karhu, J; Töyräs, J; Julkunen, P. 2017. Infrared thermography reveals effect of working posture on skin temperature in office workers INTERNATIONAL JOURNAL OF OCCUPATIONAL SAFETY AND ERGONOMICS 2018; 24 3: 457-463. 2017
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Kulkas Antti, Duce Brett, Leppänen Timo, Hukins Craig, Töyräs Juha. 2017. Severity of desaturation events differs between hypopnea and obstructive apnea events and is modulated by their duration in obstructive sleep apnea. Sleep and Breathing 21 4: 829-835. 2017
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Kulkas Antti, Duce Brett, Leppänen Timo, Hukins Craig, Töyräs Juha. 2017. Gender differences in severity of desaturation events following hypopnea and obstructive apnea events in adults during sleep. PHYSIOLOGICAL MEASUREMENT 38 8: 1490-1502. 2017
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Joukainen A, Virén T, Penttilä P, Liukkonen J, Puhakka PH, Kröger H, Töyräs J. 2017. Ultrasound Arthroscopy of Hip in Treatment of Osteochondritis Dissecans. Arthroscopy Techniques 6 4: e1063-e1068. 2017
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Eneh Chibuzor TM, Afara Isaac O, Malo Markus KH, Jurvelin Jukka S, Töyräs Juha. 2017. Porosity predicted from ultrasound backscatter using multivariate analysis can improve accuracy of cortical bone thickness assessment. The Journal of the Acoustical Society of America 141 1: 575-585. 2017
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Duce Brett, Kulkas Antti, Langton Christian, Töyräs Juha, Hukins Craig. 2017. The prevalence of REM-related obstructive sleep apnoea is reduced by the AASM 2012 hypopnoea criteria. Sleep and Breathing 2018; 22 1: 57-64. 2017
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Ala-Myllymäki Juho, Danso Elvis K, Honkanen Juuso TJ, Korhonen Rami K, Töyräs J, Afara Isaac O. 2017. Optical spectroscopic characterization of human meniscus biomechanical properties. Journal of Biomedical Optics 22 12: 125008 (10 pages). 2017
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Miettinen T, Myllymaa K, Muraja-Murro A, Westeren-Punnonen S, Hukkanen T, Töyräs J, Lappalainen R, Mervaala E, Sipilä K, Myllymaa S. 2017. Screen-printed ambulatory electrode set enables accurate diagnostics of sleep bruxism. Journal of Sleep Research 2018; 27 1: 103-112. 2017
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Rautiainen J, Nieminen MT, Salo EN, Kokkonen HT, Mangia S, Michaeli S, Gröhn O, Jurvelin JS, Töyräs J, Nissi MJ. 2016. Effect of collagen cross-linking on quantitative MRI parameters of articular cartilage. OSTEOARTHRITIS AND CARTILAGE 24 9: 1656-1664. 2016
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Myllymaa Sami, Muraja-Murro Anu, Westeren-Punnonen Susanna, Hukkanen Taina, Lappalainen Reijo, Mervaala Esa, Töyräs Juha, Sipilä Kirsi, Myllymaa Katja. 2016. Assessment of the suitability of using a forehead EEG electrode set and chin EMG electrodes for sleep staging in polysomnography. Journal of Sleep Research [Epub ahead of print 27 May 2016]: 1-10. 2016
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Männicke Nils, Schöne Martin, Liukkonen Jukka, Fachet Dominik, Inkinen Satu, Malo Markus K, Oelze Michael L, Töyräs Juha, Jurvelin Jukka S, Raum Kay. 2016. Species-Independent Modeling of High-Frequency Ultrasound Backscatter in Hyaline Cartilage. ULTRASOUND IN MEDICINE AND BIOLOGY 42 6: 1375-1384. 2016
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Ojanen X, Töyräs J, Inkinen SI, Malo MKH, Isaksson H, Jurvelin JS. 2016. Differences in acoustic impedance of fresh and embedded human trabecular bone samples - scanning acoustic microscopy and numerical evaluation. The Journal of the Acoustical Society of America 140 3: 1931-1936. 2016
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Puhakka PH, te Moller NCR, Tanska P, Saarakkala S, Tiitu V, Korhonen RK, Brommer H, Virén T, Jurvelin JS, Töyräs J. 2016. Optical coherence tomography enables accurate measurement of equine cartilage thickness for determination of speed of sound. ACTA ORTHOPAEDICA 87 4: 418-424. 2016
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Venäläinen MS, Mononen ME, Väänänen SP, Jurvelin JS, Töyräs J, Virén T, Korhonen RK. 2016. Effect of bone inhomogeneity on tibiofemoral contact mechanics during physiological loading. JOURNAL OF BIOMECHANICS 7 3: 1111-1120. 2016
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Rieppo Lassi, Töyräs Juha, Saarakkala Simo. 2016. Vibrational spectroscopy of articular cartilage. Applied Spectroscopy Reviews [Published online 23 Aug 2016]: 1-18. 2016
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Sarin Jaakko K, Amissah Michael, Brommer Harold, Argüelles David, Töyräs Juha, Afara Isaac O. 2016. Near Infrared Spectroscopic Mapping of Functional Properties of Equine Articular Cartilage. ANNALS OF BIOMEDICAL ENGINEERING 44 11: 3335-3345. 2016
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Stewart Rachel C, Honkanen Juuso TJ, Kokkonen Harri T, Tiitu Virpi, Saarakkala Simo, Joukainen Antti, Snyder Brian D, Jurvelin Jukka S, Grinstaff Mark W, Töyräs Juha. 2016. Contrast-Enhanced Computed Tomography Enables Quantitative Evaluation of Tissue Properties at Intrajoint Regions in Cadaveric Knee Cartilage. Cartilage 8 4: 391-399. 2016
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Te Moller NC, Pitkänen M, Sarin JK, Väänänen S, Liukkonen J, Afara IO, Puhakka PH, Brommer H, Niemelä T, Tulamo RM, Arqüelles Capilla D, Töyräs J. 2016. Semi-automated International Cartilage Repair Society scoring of equine articular cartilage lesions in optical coherence tomography images. EQUINE VETERINARY JOURNAL [Epub ahead of print 20 Oct 2016]: -. 2016
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Venäläinen Mikko S, Mononen Mika E, Salo Jari, Räsänen Lasse P, Jurvelin Jukka S, Töyräs Juha, Virén Tuomas, Korhonen Rami K. 2016. Quantitative Evaluation of the Mechanical Risks Caused by Focal Cartilage Defects in the Knee Scientific reports 6: 37538. 2016
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Myller Katariina AH, Turunen Mikael J, Honkanen Juuso TJ, Väänänen Sami P, Iivarinen Jarkko T, Salo Jari, Jurvelin Jukka S, Töyräs Juha. 2016. In Vivo Contrast-Enhanced Cone Beam CT Provides Quantitative Information on Articular Cartilage and Subchondral Bone. ANNALS OF BIOMEDICAL ENGINEERING [Epub ahead of print 19 Sept 2016]: 1-8. 2016
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Leppänen Timo, Töyräs Juha, Muraja-Murro Anu, Kupari Salla, Tiihonen Pekka, Mervaala Esa, Kulkas Antti. 2016. Length of Individual Apnea Events Is Increased by Supine Position and Modulated by Severity of Obstructive Sleep Apnea. Sleep Disorders 2016: 1-13. 2016
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Linder H, Malo MK, Liukkonen J, Jurvelin JS, Töyräs J. 2016. Phased-array ultrasound technology enhances accuracy of dual frequency ultrasound measurements - towards improved ultrasound bone diagnostics. JOURNAL OF MEDICAL ENGINEERING & TECHNOLOGY 40 6: 293-297. 2016
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Halonen KS, Mononen ME, Jurvelin JS, Töyräs J, Klodowski A, Kulmala JP, Korhonen RK. 2016. Importance of patella, quadriceps forces, and depthwise cartilage structure on knee joint motion and cartilage response during gait. JOURNAL OF BIOMECHANICAL ENGINEERING 138 7: BIO-15-1348, 11 pages. 2016
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Danso EK, Oinas JM, Saarakkala S, Mikkonen S, Töyräs J, Korhonen RK. 2016. Structure-function relationships of human meniscus. Journal of the Mechanical Behavior of Biomedical Materials 67 March 2017: 51-60. 2016
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Leppänen Timo, Särkkä Mikko, Kulkas Antti, Muraja-Murro Anu, Kupari Salla, Anttonen Meri, Tiihonen Pekka, Mervaala Esa, Töyräs Juha. 2016. RemLogic plug-in enables clinical application of apnea-hypopnea index adjusted for severity of individual obstruction events. JOURNAL OF MEDICAL ENGINEERING & TECHNOLOGY 40 3: 119-126. 2016
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Duce B, Kulkas A, Langton C, Töyräs J, Hukins C. 2016. The AASM 2012 recommended hypopnea criteria increase the incidence of obstructive sleep apnea but not the proportion of positional obstructive sleep apnea. SLEEP MEDICINE 26: 23-29. 2016
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Eneh CTM, Malo MKH, Karjalainen JP, Liukkonen J, Töyräs J, Jurvelin JS. 2016. Effect of porosity, tissue density, and mechanical properties on radial sound speed in human cortical bone. MEDICAL PHYSICS 43 5: 2030-2039. 2016
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Duce B, Kulkas A, Langton C, Töyräs J, Hukins C. 2016. Amsterdam positional OSA classification: the AASM 2012 recommended hypopnoea criteria increases the number of positional therapy candidates. Sleep and Breathing First Online: 11 November 2016: 1-7. 2016
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Halonen KS, Mononen ME, Töyräs J, Kröger H, Joukainen A, Korhonen RK. 2016. Optimal graft stiffness and pre-strain restore normal joint motion and cartilage responses in ACL reconstructed knee. JOURNAL OF BIOMECHANICS 49 13: 2566-2576. 2016
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Honkanen Juuso TJ, Mikael J, Freedman Jonathan D, Saarakkala Simo, Grinstaff Mark W, Ylärinne Janne H, Jurvelin Jukka S, Töyräs Juha. 2016. Cationic Contrast Agent Diffusion Differs Between Cartilage and Meniscus. ANNALS OF BIOMEDICAL ENGINEERING 44 10: 2913-2921. 2016
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Huttunen JMJ, Turunen MJ, Honkanen JTJ, Töyräs J, Jurvelin JS. 2016. Estimation of Systematic and Spatially Correlated Components of Random Signals from Repeated Measurements: Application to Contrast Enhanced Computer Tomography Measurements. SIAM JOURNAL ON SCIENTIFIC COMPUTING 38 1: B77-B99. 2016
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Inkinen SI, Liukkonen J, Malo MK, Virén T, Jurvelin JS, Töyräs J. 2016. Finite difference time domain model of ultrasound propagation in agarose scaffold containing collagen or chondrocytes. The Journal of the Acoustical Society of America 140 1: 1. 2016
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Kokkonen HT, Chin HC, Töyräs J, Jurvelin JS, Quinn TM. 2016. Solute transport of negatively charged contrast agents across articular surface of injured cartilage. ANNALS OF BIOMEDICAL ENGINEERING First Online: 08 November 2016: 1-9. 2016
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Leppänen Timo, Kulkas Antti, Duce Brett, Mervaala Esa, Töyräs Juha. 2016. Severity of individual obstruction events is gender dependent in sleep apnea. Sleep and Breathing First Online: 13 December 2016: 1-8. 2016
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Turunen Mikael J, Töyräs Juha, Kokkonen Harri T, Jurvelin Jukka S. 2015. Quantitative evaluation of knee subchondral bone mineral density using cone beam computed tomography. IEEE TRANSACTIONS ON MEDICAL IMAGING 34 10: 2186-2190. 2015
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Puhakka PH, Te Moller NC, Afara IO, Mäkelä JT, Tiitu V, Korhonen RK, Brommer H, Virén T, Jurvelin JS, Töyräs J. 2015. Estimation of articular cartilage properties using multivariate analysis of optical coherence tomography signal. OSTEOARTHRITIS AND CARTILAGE 23 12: 2206-2213. 2015
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Puhakka Jani, Afara Isaac O, Paatela Teemu, Sormaala Markus J, Timonen Matti A, Virén Tuomas, Jurvelin Jukka S, Töyräs Juha, Kiviranta Ilkka. 2015. In Vivo Evaluation of the Potential of High-Frequency Ultrasound for Arthroscopic Examination of the Shoulder Joint. Cartilage 2016; 7 3: 248-255. 2015
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Penttilä Pekko, Liukkonen Jukka, Joukainen Antti, Virén Tuomas, Jurvelin Jukka S, Töyräs Juha, Kröger Heikki. 2015. Diagnosis of Knee Osteochondral Lesions With Ultrasound Imaging. Arthroscopy Techniques 4 5: e429-e433. 2015
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Myllymaa Sami, Myllymaa Katja, Kupari Salla, Kulkas Antti, Leppänen Timo, Tiihonen Pekka, Mervaala Esa, Seppä Juha, Tuomilehto Henri, Töyräs Juha. 2015. Effect of different oxygen desaturation threshold levels on hypopnea scoring and classification of severity of sleep apnea. Sleep and Breathing 19 3: 947-954. 2015
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Myllymaa Katja, Myllymaa Sami, Leppänen Timo, Kulkas Antti, Kupari Salla, Tiihonen Pekka, Mervaala Esa, Seppä Juha, Tuomilehto Henri, Töyräs Juha. 2015. Effect of oxygen desaturation threshold on determination of OSA severity during weight loss. Sleep and Breathing 2016; 20 1: 33-42. 2015
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Muraja-Murro Anu, Mervaala Esa, Westeren-Punnonen Susanna, Lepola Pasi, Töyräs Juha, Myllymaa Sami, Julkunen Petro, Kantanen Anne-Mari, Kälviäinen Reetta, Myllymaa Katja. 2015. Forehead EEG electrode set versus full-head scalp EEG in 100 patients with altered mental state. EPILEPSY & BEHAVIOR 49: 245-249. 2015
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Lasanen R, Julkunen P, Airaksinen O, Töyräs J. 2015. Menthol concentration in topical cold gel does not have significant effect on skin cooling. SKIN RESEARCH AND TECHNOLOGY 2016; 22 1: 40-45. 2015
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Lepola Pasi, Myllymaa Sami, Töyräs Juha, Hukkanen Taina, Mervaala Esa, Määttä Sara, Lappalainen Reijo Myllymaa Katja. 2015. A Handy EEG Electrode Set for patients suffering from altered mental state. JOURNAL OF CLINICAL MONITORING AND COMPUTING 29 6: 697-705. 2015
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Lasanen R, Piippo-Savolainen E, Remes-Pakarinen T, Kröger L, Heikkilä A., Julkunen P., Karhu J, Töyräs J. 2015. Thermal imaging in screening of joint inflammation and rheumatoid arthritis in children. PHYSIOLOGICAL MEASUREMENT 36 2: 273-282. 2015
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Muhonen Virpi, Salonius Eve, Haaparanta Anne-Marie, Järvinen Elina, Paatela Teemu, Meller Anna, Hannula Markus, Björkman Mimmi, Pyhältö Tuomo, Ellä Ville, Vasara Anna, Töyräs Juha, Kellomäki Minna, Kiviranta Ilkka. 2015. Articular cartilage repair with recombinant human type II collagen/polylactide scaffold in a preliminary porcine study. JOURNAL OF ORTHOPAEDIC RESEARCH 2016; 34 5: 745-753. 2015
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Kulkas A, Leppänen T, Sahlman J, Tiihonen P, Mervaala E, Kokkarinen J, Randell J, Seppä J, Töyräs J, Tuomilehto H. 2015. Amount of weight loss or gain influences the severity of respiratory events in sleep apnea. MEDICAL AND BIOLOGICAL ENGINEERING AND COMPUTING epub 17 Apr 2015: 14 p. 2015
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Eneh Chibuzor TM, Liukkonen Jukka, Malo Markus KH, Jurvelin Jukka S, Töyräs Juha. 2015. Inter-individual changes in cortical bone three-dimensional microstructure and elastic coefficient have opposite effects on radial sound speed. The Journal of the Acoustical Society of America 138 6: 3491. 2015
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Karjalainen JP, Riekkinen O, Töyräs J, Jurvelin JS, Kröger H. 2015. New method for point-of-care osteoporosis screening and diagnostics. OSTEOPOROSIS INTERNATIONAL 2016; 27 3: 971-977. 2015
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Afara Isaac O, Hauta-Kasari Markku, Jurvelin Jukka S, Oloyede Adekunle, Töyräs Juha. 2015. Optical absorption spectra of human articular cartilage correlate with biomechanical properties, histological score and biochemical composition. PHYSIOLOGICAL MEASUREMENT 36 9: 1913-1928. 2015
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Danso EK, Mäkelä JTA, Tanska P, Mononen ME, Honkanen JTJ, Jurvelin JS, Töyräs J, Julkunen P, Korhonen RK. 2015. Characterization of site-specific biomechanical properties of human meniscus-Importance of collagen and fluid on mechanical nonlinearities. JOURNAL OF BIOMECHANICS 48 8: 1499-1507. 2015
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Ala-Myllymäki Juho, Honkanen Juuso TJ, Töyräs Juha, Afara Isaac O. 2015. Optical spectroscopic determination of human meniscus composition. JOURNAL OF ORTHOPAEDIC RESEARCH 2016; 34 2: 270-278. 2015
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Hirvasniemi J., Kokkonen H. T., Thevenot J., Finnilä M., Venäläinen M. S., Jämsä T., Korhonen R. K., Töyräs J., Saarakkala S.. 2015. Comparison of subchondral bone density and structure of tibia measured from plain radiograph with micro-computed tomography. OSTEOARTHRITIS AND CARTILAGE 23: A234-A235. 2015
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Hirvasniemi Jukka, Thevenot Jérôme, Kokkonen Harri T, Finnilä Mikko A, Venäläinen Mikko S, Jämsä Timo, Korhonen Rami K, Töyräs Juha, Saarakkala Simo. 2015. Correlation of Subchondral Bone Density and Structure from Plain Radiographs with Micro Computed Tomography Ex Vivo. ANNALS OF BIOMEDICAL ENGINEERING 44: 1698. 2015
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Honkanen JTJ, Danso EK, Suomalainen JS, Tiitu V, Korhonen RK, Jurvelin JS, Töyräs J. 2015. Contrast Enhanced Imaging of Human Meniscus Using Cone Beam CT. OSTEOARTHRITIS AND CARTILAGE 23 8: 1367-1376. 2015
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Honkanen Juuso, Turunen Mikael, Tiitu Virpi, Jurvelin Jukka, Töyräs Juha. 2015. Transport of Iodine Is Different in Cartilage and Meniscus. ANNALS OF BIOMEDICAL ENGINEERING 2016; 44 7: 2114-2122. 2015
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Inkinen Satu I, Liukkonen Jukka, Tiitu Virpi, Viren Tuomas, Jurvelin Jukka S, Töyräs Juha. 2015. Ultrasound Backscattering Is Anisotropic in Bovine Articular Cartilage. ULTRASOUND IN MEDICINE AND BIOLOGY 41 7: 1958-1966. 2015
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Liukkonen Jukka, Lehenkari Petri, Hirvasniemi Jukka, Joukainen Antti, Virén Tuomas, Saarakkala Simo, Nieminen Miika T, Jurvelin Jukka S, Töyräs Juha. 2014. Ultrasound Arthroscopy of Human Knee Cartilage and Subchondral Bone in Vivo. ULTRASOUND IN MEDICINE AND BIOLOGY 40 9: 2039-2047. 2014
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Venäläinen Mikko S, Mononen Mika E, Jurvelin Jukka S, Töyräs Juha, Virén Tuomas, Korhonen Rami K. 2014. Importance of Material Properties and Porosity of Bone on Mechanical Response of Articular Cartilage in Human Knee Joint - A Two-Dimensional Finite Element Study. JOURNAL OF BIOMECHANICAL ENGINEERING 136 12: 121005. 2014
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Qu Chengjuan, Hirviniemi Mikko, Tiitu Virpi, Jurvelin Jukka S, Töyräs Juha, Lammi Mikko J. 2014. Effects of freeze-thaw cycle with and without proteolysis inhibitors and cryopreservant on the biochemical and biomechanical properties of articular cartilage. Cartilage 5 2: 97-106. 2014
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Puhakka PH, Ylärinne JH, Lammi MJ, Saarakkala S, Tiitu V, Kröger H, Virén T, Jurvelin JS, Töyräs J. 2014. Dependence of light attenuation and backscattering on collagen concentration and chondrocyte density in agarose scaffolds. PHYSICS IN MEDICINE AND BIOLOGY 59 21: 6537-48. 2014
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Ojanen X, Isaksson H, Töyräs J, Turunen MJ, Malo MKH, Halvari A, Jurvelin JS. 2014. Relationships Between Tissue Composition and Viscoelastic Properties in Human Trabecular Bone. JOURNAL OF BIOMECHANICS Epub 2014 Dec 3: 269-275. 2014
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Niemelä Tytti, Virén Tuomas, Liukkonen Jukka, Argüelles David, te Moller Nikae CR, Puhakka Pia H, Jurvelin Jukka S, Tulamo Riitta-Mari, Töyräs Juha. 2014. Application of optical coherence tomography enhances reproducibility of arthroscopic evaluation of equine joints. ACTA VETERINARIA SCANDINAVICA 56 3: -. 2014
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Muraja-Murro A, Kulkas A, Hiltunen M, Kupari S, Hukkanen T, Tiihonen P, Mervaala E, Töyräs J. 2014. Adjustment of apnea-hypopnea index with severity of obstruction events enhances detection of sleep apnea patients with the highest risk of severe health consequences. Sleep and Breathing 18 3: 641-647. 2014
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Malo MKH, Töyräs J, Karjalainen JP, Isaksson H, Riekkinen O, Jurvelin JS. 2014. Ultrasound backscatter measurements of intact human proximal femurs - Relationships of ultrasound parameters with tissue structure and mineral density. BONE 64: 240-245. 2014
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Lepola Pasi, Myllymaa Sami, Töyräs Juha, Mervaala Esa, Lappalainen Reijo, Myllymaa Katja. 2014. Shielded design of screen-printed EEG electrode set reduces interference pick-up. IEEE SENSORS JOURNAL 14 8: 2692-2697. 2014
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Lepola Pasi, Myllymaa Sami, Töyräs Juha, Muraja-Murro Anu, Mervaala Esa, Lappalainen Reijo, Myllymaa Katja. 2014. Screen-printed EEG electrode set for emergency use. SENSORS AND ACTUATORS A. PHYSICAL 213 July: 19-26. 2014
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Lappalainen R, Mervaala E, Myllymaa K, Myllymaa S, Töyräs J. 2014. Arrangement and method for carrying out electrode measurements. WO 2014072582 A1. 2014
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Kulkas A, Muraja-Murro A, Tiihonen P, Mervaala E, Töyräs J. 2014. Morbidity and mortality risk ratios are elevated in severe supine dominant OSA: a long-term follow-up study. Sleep and Breathing epub: 8 sivua. 2014
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Kulkas A, Leppänen T, Sahlman J, Tiihonen P, Mervaala E, Kokkarinen J, Randell J, Seppä J, Töyräs J, Tuomilehto H. 2014. Weight loss alters severity of individual nocturnal respiratory events depending on sleeping position. PHYSIOLOGICAL MEASUREMENT 35 10: 2037-2052. 2014
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Inkinen Satu, Liukkonen Jukka, Ylärinne Janne, Puhakka Pia, Lammi Mikko, Virén Tuomas, Jurvelin Jukka, Töyräs Juha. 2014. Collagen and chondrocyte concentrations control ultrasound scattering in agarose scaffolds. ULTRASOUND IN MEDICINE AND BIOLOGY 40 9: 2162-2171. 2014
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Huttunen JMJ, Kokkonen HT, Jurvelin JS, Töyräs J, Kaipio JP. 2014. Estimation of fixed charge density and diffusivity profiles in cartilage using contrast enhanced computer tomography. INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING 98 5: 371-390. 2014
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Husso M, Sipola P, Kuittinen T, Manninen H, Vainio P, Hartikainen J, Saarakkala S, Töyräs J, Kuikka J. 2014. Assessment of myocardial perfusion with MRI using a modified dual bolus method. PHYSIOLOGICAL MEASUREMENT 35 4: 533-47. 2014
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Halonen KS, Mononen ME, Jurvelin JS, Töyräs J, Salo J, Korhonen RK. 2014. Deformation of articular cartilage during static loading of a knee joint - Experimental and finite element analysis. JOURNAL OF BIOMECHANICS 47 10: 2467-2474. 2014
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Liukkonen J, Lehenkari P, Hirvasniemi J, Joukainen A, Saarakkala S, Jurvelin J, Töyräs J. 2013. Ultrasound Arthroscopy of Human Knee Joint in vivo,, ORS 2013 annual meeting. 1986. 2013
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te Moller, NCR; Brommer, H; Liukkonen, J; Virén T; Timonen M; Puhakka PH; Jurvelin JS; van Weeren PR; Töyräs J. 2013. Arthroscopic optical coherence tomography provides detailed information on articular cartilage lesions in horses. The Veterinary Journal 197: 589-595. 2013
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Myllymaa Sami, Lepola Pasi, Töyräs Juha, Hukkanen Taina, Mervaala Esa, Lappalainen Reijo, Myllymaa Katja. 2013. New disposable forehead electrode set with excellent signal quality and imaging compatibility. JOURNAL OF NEUROSCIENCE METHODS 215 1: 103-109. 2013
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Myllymaa S, Lepola P, Hukkanen T, Oun A, Mervaala E, Toyras J, Lappalainen R, Myllymaa K. 2013. Novel screen printed electrode set for routine EEG recordings in patients with altered mental status: -, Engineering in Medicine and Biology Society (EMBC), 2013 35th Annual International Conference of the IEEE. Engineering in Medicine and Biology Society Proceedings. 6724-6727. 2013
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Muraja-Murro A, Kulkas A, Hiltunen M, Kupari S, Hukkanen T, Tiihonen P, Mervaala E, Töyräs J. 2013. The severity of individual obstruction events is related to increased mortality rate in severe obstructive sleep apnea. Journal of Sleep Research 22 6: 663-669. 2013
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Muraja-Murro A, Eskola K, Kolari T, Tiihonen P, Hukkanen T, Tuomilehto H, Peltonen M, Mervaala E, Töyräs J. 2013. Mortality in middle-aged men with obstructive sleep apnea in Finland. Sleep and Breathing 17 3: 1047-1053. 2013
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Malo MK, Rohrbach D, Isaksson H, Töyräs J, Jurvelin JS, Tamminen IS, Kröger H, Raum K. 2013. Longitudinal elastic properties and porosity of cortical bone tissue vary with age in human proximal femur. BONE 53 2: 451-458. 2013
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Liukkonen J, Lehenkari P, Hirvasniemi J, Joukainen A, Virén T, Saarakkala S, Nieminen M, Jurvelin JS, Töyräs J. 2013. Ultrasound Arthroscopy of Human Knee Joint: Feasibility In Vivo, ESUCB 2013, 5th European Symposium on Ultrasonic Characterization of Bone. 50. 2013
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Salo J, Töyräs J, Joukainen A, Jurvelin J, Kröger H. 2013. Rustovaurioiden kehittyvä diagnostiikka - nopein hoitotuloksia parantava tekijä?. SUOMEN ORTOPEDIA JA TRAUMATOLOGIA 36 3: 256-261. 2013
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Liukkonen J, Hirvasniemi J, Joukainen A, Penttilä P, Virén T, Saarakkala S, Kröger H, Jurvelin JS, Töyräs J. 2013. Arthroscopic ultrasound technique for simultaneous quantitative assessment of articular cartilage and subchondral bone: an in vitro and in vivo feasibility study. ULTRASOUND IN MEDICINE AND BIOLOGY 39 8: 1460-1468. 2013
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Kulkas A, Tiihonen P, Julkunen P, Mervaala E, Töyräs J. 2013. Novel parameters indicate significant differences in severity of obstructive sleep apnea with patients having similar apnea-hypopnea index. MEDICAL AND BIOLOGICAL ENGINEERING AND COMPUTING 51 6: 697-708. 2013
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Kulkas A, Tiihonen P, Julkunen P, Mervaala E, Töyräs J. 2013. Desaturation delay, parameter for evaluating severity of sleep disordered breathing: Long M, World Congress on Medical Physics and Biomedical Engineering May 26-31, 2012, Beijing, China. IFMBE Proceedings 39. 336-339. 2013
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Kulkas A, Tiihonen P, Eskola K, Julkunen P, Mervaala E, Töyräs J. 2013. Novel parameters for evaluating severity of sleep disordered breathing and for supporting diagnosis of sleep apnea-hypopnea syndrome. JOURNAL OF MEDICAL ENGINEERING & TECHNOLOGY 37 2: 135-143. 2013
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Kulkas A, Leppänen T, Sahlman J, Tiihonen P, Mervaala E, Kokkarinen J, Randell J, Seppä J, Tuomilehto H, Töyräs J. 2013. Novel parameters reflect changes in morphology of respiratory events during weight loss. PHYSIOLOGICAL MEASUREMENT 34 9: 1013-1026. 2013
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Kokkonen HT, Suomalainen JS, Joukainen A, Kröger H, Sirola J, Jurvelin JS, Salo J, Töyräs J. 2013. In vivo diagnostics of human knee cartilage lesions using delayed CBCT arthrography. JOURNAL OF ORTHOPAEDIC RESEARCH 2013 2014 Mar;32(3):403-12: 1-10. 2013
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Halonen KS, Mononen ME, Jurvelin JS, Töyräs J, Korhonen RK. 2013. Importance of depth-wise distribution of collagen and proteoglycans in articular cartilage - A 3D finite element study of stresses and strains in human knee joint. JOURNAL OF BIOMECHANICS 46 6: 1184-1192. 2013
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Inkinen, S; Liukkonen, J; Ylärinne, Puhakka, PH; J; Lammi, M; Virén, T; Jurvelin JS; Töyräs, J. 2013. Collagen and Chondrocyte Content Control Ultrasound Scattering in Agarose Scaffolds, ORS 2013 annual meeting. 1214. 2013
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Kulmala KAM, Karjalainen HM, Kokkonen HT, Tiitu V, Kovanen V, Lammi MJ, Jurvelin JS, Korhonen RK, Töyräs J. 2013. Diffusion of ionic and non-ionic contrast agents in articular cartilage with increased cross-linking-contribution of steric and electrostatic effects. MEDICAL ENGINEERING & PHYSICS 35 10: 1415-1420. 2013
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Pulkkinen HJ, Tiitu V, Valonen P, Jurvelin JS, Rieppo L, Töyräs J, Silvast TS, Lammi MJ, Kiviranta I. 2012. Repair of osteochondral defects with recombinant human type II collagen gel and autologous chondrocytes in rabbit. OSTEOARTHRITIS AND CARTILAGE 2012 Dec 17. pii: S1063-4584(12)01049-7.: --. 2012
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Virén T, Timonen M, Tyrväinen H, Tiitu V, Jurvelin JS, Töyräs J. 2012. Ultrasonic evaluation of acute impact injury of articular cartilage in vitro OSTEOARTHRITIS AND CARTILAGE 20: 719-726. 2012
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Virén T, Huang YP, Saarakkala S, Pulkkinen H, Tiitu V, Linjama A, Kiviranta I, Lammi MJ, Brünott A, Van Weeren R, Brama PAJ, Zheng YP, Jurvelin JS, Töyräs J. 2012. Comparison of ultrasound and optical coherence tomography techniques for evaluation of integrity of spontaneously repaired horse cartilage. JOURNAL OF MEDICAL ENGINEERING & TECHNOLOGY 36 3: 185-192. 2012
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Silvast Tuomo, Jurvelin Jukka, Tiitu Virpi, Quinn Thomas, Töyräs Juha. 2012. Bath concentration of anionic contrast agents does not affect their diffusion and distribution in articular cartilage in vitro Cartilage 2013; 4 1: 42-51. 2012
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Salo E-N, Nissi MJ, Kulmala KAM, Tiitu V, Töyräs J, Nieminen MT. 2012. Diffusion of Gd-DTPA2- into articular cartilage. OSTEOARTHRITIS AND CARTILAGE 20 2: 117-126. 2012
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Liukkonen J, Hirvasniemi J, Joukainen A, Penttilä P, Virén T, Jurvelin, JS, Töyräs, J. 2012. Simultaneous quantitative ultrasound assessment of cartilage and subchondral bone, ORS 2012 annual meeting, Orthpaedic Research Society. 1443. 2012
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Muraja-Murro A, Nurkkala J, Tiihonen P, Hukkanen T, Tuomilehto H, Kokkarinen J, Mervaala E, Töyräs J. 2012. Total duration of apnea and hypopnea events and average desaturation show significant variation in patients with a similar apnea-hypopnea index. JOURNAL OF MEDICAL ENGINEERING & TECHNOLOGY 36 8: 393-398. 2012
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Kokkonen, Harri; Aula, Antti; Kröger, Heikki; Suomalainen, Juha-Sampo; Lammentausta, Eveliina; Mervaala, Esa; Jurvelin, Jukka; Töyräs, Juha. 2012. Delayed computed tomography artrography of human knee cartilage In Vivo. Cartilage 3 4: 334-341. 2012
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Kinnunen Jussi, Kokkonen Harri T, Kovanen Vuokko, Hauta-Kasari Markku, Vahimaa Pasi, Lammi Mikko J, Töyräs Juha, Jurvelin Jukka S. 2012. Nondestructive fluorescence-based quantification of threose-induced collagen cross-linking in bovine articular cartilage. Journal of Biomedical Optics 17 9: 97003. 2012
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Karjalainen JP., Riekkinen O., Töyräs J., Hakulinen M., Kröger H., Rikkonen T., Salovaara K., Jurvelin JS.. 2012. Multi-site bone ultrasound measurements in elderly women with and without previous hip fractures OSTEOPOROSIS INTERNATIONAL 23: 1287-1295. 2012
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K.A.M. Kulmala, H.J. Pulkkinen, L. Rieppo, V. Tiitu, I. Kiviranta, A. Brünott, H. Brommer, R. van Weeren, P.A.J. Brama, M.T. Mikkola, R.K. Korhonen, J.S. Jurvelin, J.Töyräs. 2012. Contrast-Enhanced Micro-Computed Tomography in Evaluation of Spontaneous Repair of Equine Cartilage. Cartilage 3 3: 235-244. 2012
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Hirvasniemi J, Kulmala KAM, Lammentausta E, Ojala R, Lehenkari P, Kamel A, Jurvelin JS, Töyräs J, Nieminen MT and Saarakkala S. 2012. In vivo comparison of delayed gadolinium-enhanced MRI of cartilage and delayed quantitative CT arthrography in imaging of articular cartilage. OSTEOARTHRITIS AND CARTILAGE xx xx: xx. 2012
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Malo MK, Karjalainen JP, Riekkinen O, Isaksson H, Jurvelin JS, Töyräs J.. 2011. Effects of non-optimal focusing on dual-frequency ultrasound measurements of bone IEEE TRANSACTIONS ON ULTRASONICS, FERROELECTRICS, AND FREQUENCY CONTROL 58 6: 1182-1188. 2011
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Virén Tuomas, Saarakkala Simo, Tiitu Virpi, Puhakka Jani, Kiviranta Ilkka, Jurvelin Jukka S, Töyräs Juha. 2011. Ultrasound evaluation of mechanical injury of bovine knee articular cartilage under arthroscopic control IEEE TRANSACTIONS ON ULTRASONICS, FERROELECTRICS, AND FREQUENCY CONTROL 58 1: 148-154. 2011
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Turunen MJ, Töyräs J, Lammi MJ, Jurvelin JS, Korhonen RK. 2011. Hyperosmolaric Contrast Agents in Cartilage Tomography May Expose Cartilage to Overload- Induced Cell Death. JOURNAL OF BIOMECHANICS 45: 497-503. 2011
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Timonen MA, Töyräs J, Aula AS, Karjalainen JP, Riekkinen O, Jurvelin JS. 2011. Technical and practical improvements in arthroscopic indentation technique for diagnostics of articular cartilage softening JOURNAL OF MEDICAL ENGINEERING & TECHNOLOGY 35 1: 40-46. 2011
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Salo J, Kokkonen HT, Kröger H, Jurvelin JS, Töyräs J. 2011. Kartiokeila-TT kokeellisen rustovaurion diagnostiikassa SUOMEN ORTOPEDIA JA TRAUMATOLOGIA 34 3: 288-289. 2011
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Penttilä P, Liukkonen J, Joukainen A, Virén T, Jurvelin JS, Kröger H, Töyräs J. 2011. Evaluation of Joint Cartilage and Subchondral Bone using Arthroscopic Ultrasound Imaging SUOMEN ORTOPEDIA JA TRAUMATOLOGIA 34 3: 229. 2011
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Mononen ME, Julkunen P, Toyras J, Jurvelin JS, Kiviranta I, Korhonen RK. 2011. Alterations in structure and properties of collagen network of osteoarthritic and repaired cartilage modify knee joint stresses BIOMECHANICS AND MODELING IN MECHANOBIOLOGY 10 3: 357-369. 2011
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Kokkonen HT, Mäkelä J, Kulmala KAM, Rieppo L, Jurvelin JS, Tiitu V, Karjalainen HM, Korhonen RK, Kovanen V, Töyräs J. 2011. Computed tomography detects changes in contrast agent diffusion after collagen cross-linking typical to natural aging of articular cartilage OSTEOARTHRITIS AND CARTILAGE 19: 1190-1198. 2011
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Liukkonen J, Aula A, Töyräs J, Jurvelin JS. 2011. Simultaneous quantitative ultrasound assessment of cartilage and subchondral bone, 4th European Symposium on Ultrasonic Characterization of Bone (ESUCB). 76. 2011
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Kulmala K.A.M, Pulkkinen H.J, Rieppo L, Tiitu V, Kiviranta I, Brünott A, Brommer H, van Weeren R, Brama P.A.J, Mikkola M.T, Korhonen R.K, Jurvelin J.S, Töyräs J.. 2011. Contrast enhanced computed tomography in evaluation of spontaneous cartilage repair. Teoksessa: (toim.), 5th Osteoarthritis Imaging Workshop. ss. 6. 2011
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Kokkonen HT, Jurvelin JS, Tiitu V, Töyräs J. 2011. Detection of mechanical injury of articular cartilage using contrast enhanced computed tomography OSTEOARTHRITIS AND CARTILAGE 19: 297-301. 2011
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Kinnunen Jussi, Hauta-Kasari Markku, Kokkonen Harri, Vahimaa Pasi, Lammi Mikko, Töyräs Juha, Jurvelin Jukka. 2011. Collagen cross-link modified fluorescence excitation-emission matrix of articular cartilage: N/A, Topical problems of biophotonics -2011, proceedings. 59-60. 2011
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Kaleva Erna, Viren Tuomas, Saarakkala Simo, Sahlman Janne, Sirola Joonas, Puhakka Jani, Paatela Teemu, Kröger Heikki, Kiviranta Ilkka, Jurvelin Jukka, Töyräs Juha. 2011. Arthroscopic Ultrasound Assessment of Articular Cartilage in the Human Knee Joint Cartilage 2 3: 246-253. 2011
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Isaksson, Hanna; Töyräs, J; Hakulinen, M; Aula, AS; Tamminen, Inari; Julkunen, P; Kröger, Heikki; Jurvelin, Jukka. 2011. Structural parameters of normal and osteoporotic human trabecular bone are affected differently by microCT image resolution. OSTEOPOROSIS INTERNATIONAL 22 1: 167-177. 2011
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Huang YP, Saarakkala S, Töyräs J, Wang LK, Jurvelin JS, Zheng YP.. 2011. Effects of optical beam angle on quantitative optical coherence tomography (OCT) in normal and surface degenerated bovine articular cartilage. PHYSICS IN MEDICINE AND BIOLOGY 56 2: 491-509. 2011
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Salo, E-N., Nissi, M. J., Kulmala K. A., Töyräs J., Nieminen M. T.. 2010. Dynamics of contrast agent enhancement of intact and enzymatically degraded articular cartilage, Proceedings of the International Society of Magnetic Resonance in Medicine 18. 3177. 2010
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Salo, E-N., Nissi, M. J., Kulmala K. A., Töyräs J., Nieminen M. T.. 2010. Diffusivity and kinetics of gadopentetate in articular cartilage in vitro. Teoksessa: (toim.), Proceedings of the International Society of Magnetic Resonance in Medicine 18. ss. 234. 2010
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Salo E-N., Nissi M. J., Kulmala K., Töyräs J., Nieminen M. T.. 2010. Temporal dynamics and diffusion of gadopentetate in articular cartilage at MRI concentrations in vitro, Transactions of the Orthopaedic Research Society 35. 1348. 2010
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Mononen, M E; Julkunen, P; Jurvelin, J S; Töyräs, J; Korhonen, R K. 2010. Effect of Degenerative Changes of Articular Cartilage on Knee Joint Stresses ¿ Functional Imaging by Combining Clinical MRI and Finite Element Modeling. Teoksessa: Smith & Nephew, Inc. (toim.), Transactions of the Orthopaedic Research Society. ss. 865. 2010
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Kulmala KAM, Korhonen RK, Julkunen P, Jurvelin JS, Quinn TM, Kröger H, Töyräs J. 2010. Diffusion of CT and MRI contrast agents in articular cartilage in vitro. Teoksessa: (toim.), Transactions of the Orthopaedic Research Society. ss. 1352. 2010
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Kulmala K.A.M.,Korhonen R.K.,Julkunen P,Jurvelin J.S.,Quinn T.M.,Kröger H,Töyräs J. 2010. Diffusion coefficients of articular cartilage for different CT and MRI contrast agents MEDICAL ENGINEERING & PHYSICS 32: 878-882. 2010
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Kaleva E., Liukkonen J, Töyräs J, Saarakkala S, Kiviranta P, and Jurvelin JS. 2010. 2-D Finite Difference Time Domain Model of Ultrasound Reflection From Normal and Osteoarthritic Human Articular Cartilage Surface. IEEE TRANSACTIONS ON ULTRASONICS, FERROELECTRICS, AND FREQUENCY CONTROL 57 4: 892-9. 2010
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Bone Quantitative Ultrasound. Laugier P. and Haiat G.. 2010 2010
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Aula AS, Töyräs J, Tiitu V, Jurvelin JS. 2010. Simultaneous ultrasound measurement of articular cartilage and subchondral bone. OSTEOARTHRITIS AND CARTILAGE 18 12: 1570-1576. 2010
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Silvast TS, Jurvelin JS, Aula AS, Lammi MJ, Töyräs J. 2009. Contrast agent-enhanced computed tomography of articular cartilage: association with tissue composition and properties ACTA RADIOLOGICA 50 1: 78-85. 2009
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Viren T, Saarakkala S, Kaleva E, Nieminen HJ, Jurvelin JS, Töyräs J. 2009. Minimally invasive ultrasound method for intra-articular diagnostics of cartilage degeneration. ULTRASOUND IN MEDICINE AND BIOLOGY 35 9: 1546-1554. 2009
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Tiihonen P, Pääkkönen A, Mervaala E, Hukkanen T, Töyräs J. 2009. Design, construction and evaluation of an ambulatory device for screening of sleep apnea. MEDICAL AND BIOLOGICAL ENGINEERING AND COMPUTING 47: 59-66. 2009
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Tiihonen P, Hukkanen T, Tuomilehto H, Mervaala E, Töyräs J. 2009. Evaluation of a novel ambulatory device for screening of sleep apnea. TELEMEDICINE JOURNAL AND E-HEALTH 15 3: 283-289. 2009
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Tiihonen P, Hukkanen T, Tuomilehto H, Mervaala E, Pääkkönen A, Töyräs J. 2009. Accuracy of automatic analysis of ambulatory recordings of nocturnal breathing disorders is significantly instrumentation dependent. JOURNAL OF MEDICAL ENGINEERING & TECHNOLOGY 33 5: 386-393. 2009
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Silvast TS, Kokkonen HT, Jurvelin JS, Quinn TM, Nieminen MT, Töyräs J. 2009. Diffusion and near-equilibrium distribution of MRI and CT contrast agents in articular cartilage. PHYSICS IN MEDICINE AND BIOLOGY 54: 6823-6836. 2009
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Silvast TS, Jurvelin JS, Lammi MJ, Töyräs J. 2009. pQCT study on diffusion and equilibrium distribution of iodinated anionic contrast agent in human articular cartilage - associations to matrix composition and integrity. OSTEOARTHRITIS AND CARTILAGE 17: 26-32. 2009
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Aula AS, Jurvelin JS, Töyräs J. 2009. Simultaneous computed tomography of articular cartilage and subchondral bone. OSTEOARTHRITIS AND CARTILAGE 17: 1583-1588. 2009
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Myllymaa S, Myllymaa K, Korhonen H, Töyräs J, Jääskeläinen JE, Djupsund K, Tanila H, Lappalainen R. 2009. Fabrication and testing of polyimide-based microelectrode arrays for cortical mapping of evoked potentials BIOSENSORS AND BIOELECTRONICS 24: 3067-3072. 2009
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Kiviranta P, Lammentausta E, Töyräs J, Nieminen HJ, Julkunen P, Kiviranta I, Jurvelin JS. 2009. Differences in acoustic properties of intact and degenerated human patellar cartilage during compression ULTRASOUND IN MEDICINE AND BIOLOGY 35 8: 1367-1375. 2009
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Karjalainen JP, Töyräs J, Riekkinen O, Hakulinen M, Jurvelin JS. 2009. Ultrasound backscatter imaging provides frequency-dependent information on structure, composition and mechanical properties of human trabecular bone ULTRASOUND IN MEDICINE AND BIOLOGY 35 8: 1376-1384. 2009
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Karjalainen J, Töyräs J, Riekkinen O, Hakulinen MA. 2009. Ultrasound backscattering outperforms the clinically used ultrasound parameters in discrimination of osteoporotic-like human trabecular bone samples: Dössel O, Schlegel WC, World Congress on Medical Physics and Biomedical Engineering. Diagnostic Imaging. IFMBE Proceedings.Springer. 94-97. 2009
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Kaleva E, Töyräs J, Jurvelin JS, Viren T, Saarakkala S. 2009. Effects of ultrasound frequency, temporal sampling frequency, and spatial sampling step on the quantitative ultrasound parameters of articular cartilage. IEEE TRANSACTIONS ON ULTRASONICS, FERROELECTRICS, AND FREQUENCY CONTROL 56 7: 1383-1393. 2009
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Kaleva E, Saarakkala S, Jurvelin JS, Viren T, Töyräs J. 2009. Effects of ultrasound beam angle and surface roughness on the quantitative ultrasound parameters of articular cartilage. ULTRASOUND IN MEDICINE AND BIOLOGY 35 8: 1344-1351. 2009
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Aula AS, Töyräs J, Hakulinen MA, Jurvelin JS. 2009. Effect of bone marrow on acoustic properties of trabecular bone - 3D finite difference modelling study. ULTRASOUND IN MEDICINE AND BIOLOGY 35 2: 308-318. 2009
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Lötjönen P, Julkunen P, Töyräs J, Lammi MJ, Jurvelin JS, Nieminen HJ. 2009. Strain-dependent modulation of ultrasound speed in articular cartilage under dynamic compression. ULTRASOUND IN MEDICINE AND BIOLOGY 35 7: 1177-1184. 2009
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Karjalainen JP., Riekkinen O., Töyräs J., Jurvelin JS., Kröger H.. 2008. Recent Developments and Future Prospects in Bone Ultrasound Diagnostics European Musculoskeletal Review 3 2: 90-94. 2008
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Tiihonen P, Kinnunen J, Töyräs J, Mervaala E, Pääkkönen A. 2008. A portable device for intensive care brain function monitoring with event-related potentials. COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE 89: 83-92. 2008
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Riekkinen O, Hakulinen MA, Töyräs J, Jurvelin JS. 2008. Dual-frequency ultrasound - new pulse-echo technique for bone densitometry. ULTRASOUND IN MEDICINE AND BIOLOGY 34 10: 1703-1708. 2008
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Kiviranta P, Lammentausta E, Töyräs J, Kiviranta I, Jurvelin JS. 2008. Indentation diagnostics of cartilage degeneration. OSTEOARTHRITIS AND CARTILAGE 16: 796-804. 2008
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Kurkijärvi JE, Nissi MJ, Rieppo J, Töyräs J, Kiviranta I, Nieminen MT, Jurvelin JS. 2008. The zonal architecture of human articular cartilage described by T2 relaxation time in the presence of Gd-DTPA2-. MAGNETIC RESONANCE IMAGING 26: 602-607. 2008
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Karjalainen J, Töyräs J, Rikkonen T, Jurvelin JS, Riekkinen O. 2008. Dual-frequency ultrasound technique minimizes errors induced by soft tissue in ultrasound bone densitometry. ACTA RADIOLOGICA 49 9: 1038-1041. 2008
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Karjalainen J, Riekkinen O, Töyräs J, Jurvelin J, Kröger H. 2008. Recent developments and future prospects in bone ultrasound diagnostics, European Musculoskeletal Review [Online].Touch Briefings. 87-89. 2008
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Janne Karjalainen, Juha Töyräs, Toni Rikkonen, Jukka Jurvelin, Ossi Riekkinen. 2008. Dual frequency ultrasound technique minimizes errors induced by soft tissues in ultrasound bone densitometry ACTA RADIOLOGICA 49: 1038-41. 2008
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Kaleva E, Saarakkala S, Töyräs J, Nieminen HJ, Jurvelin JS. 2008. In-vitro comparison of time-domain, frequency-domain and wavelet ultrasound parameters in diagnostics of cartilage degeneration. ULTRASOUND IN MEDICINE AND BIOLOGY 34: 155-159. 2008
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Jurvelin JS, Nieminen MT, Töyräs J, Risteli J, Laasanen MS, Konttinen YT, Kiviranta I. 2008. Fysikaaliset ja kemialliset menetelmät nivelrikon varhaisessa osoittamisessa. DUODECIM 124: 1885-1896. 2008
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Karjalainen J, Riekkinen O, Töyräs J, Kröger H, Jurvelin J. 2008. Ultrasonic assessment of cortical bone thickness In Vitro and In Vivo IEEE TRANSACTIONS ON ULTRASONICS, FERROELECTRICS, AND FREQUENCY CONTROL 55 10: 2191-2197. 2008
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Riekkinen O, Hakulinen MA, Lammi MJ, Jurvelin JS, Kallioniemi A, Töyräs J. 2007. Acoustic properties of trabecular bone-relationships to tissue composition. ULTRASOUND IN MEDICINE AND BIOLOGY 33 9: 1438-1444. 2007
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Sierpowska J, Lammi MJ, Hakulinen MA, Jurvelin JS, Lappalainen R, Töyräs J. 2007. Effect of human trabecular bone composition on its electrical properties MEDICAL ENGINEERING & PHYSICS 29 8: 845-852. 2007
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Saarakkala S, Jurvelin JS, Zheng YP, Nieminen HJ, Töyräs J. 2007. Quantitative information from ultrasound evaluation of articular cartilage should be interpreted with care. ARTHROSCOPY 23 10: 1137-1141. 2007
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Riekkinen O, Hakulinen MA, Töyräs J, Jurvelin JS. 2007. Spatial variation of acoustic properties is related with mechanical properties of trabecular bone. PHYSICS IN MEDICINE AND BIOLOGY 52: 6961-6968. 2007
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Nieminen HJ, Julkunen P, Töyräs J, Jurvelin JS. 2007. Ultrasound speed in articular cartilage under mechanical compression ULTRASOUND IN MEDICINE AND BIOLOGY 33 11: 1755-1766. 2007
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Qu CJ, Rieppo J, Hyttinen MM, Lammi MJ, Kiviranta I, Kurkijärvi J, Jurvelin J, Töyräs J. 2007. Human articular cartilage proteoglycans are not undesulfated in osteoarthritis. CONNECTIVE TISSUE RESEARCH 48 1: 27-33. 2007
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Nissi MJ, Rieppo J, Töyräs J, Laasanen MS, Kiviranta I, Nieminen MT, Jurvelin JS. 2007. Estimation of mechanical properties of articular cartilage with MRI - dGEMRIC, T2 and T1 imaging in different species with variable stages of maturation OSTEOARTHRITIS AND CARTILAGE 15: 1141-1148. 2007
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Lammentausta E, Kiviranta P, Töyräs, Hyttinen MM, Kiviranta I, Nieminen MT, Jurvelin JS. 2007. Quantitative MRI of parallel changes of articular cartilage and underlying trabecular bone in degeneration Osteoarthritis and cartilage 15: 1149-1157. 2007
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Kiviranta P, Töyräs J, Nieminen MT, Laasanen MS, Saarakkala S, Nieminen HJ, Nissi MJ, Jurvelin J. 2007. Comparison of novel clinically applicable methodology for sensitive diagnostics of cartilage degeneration European cells and materials 13: 46-55. 2007
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Kallioniemi AS, Jurvelin JS, Nieminen MT, Lammi MJ, Töyräs J. 2007. Contrast agent enhanced pQCT of articular cartilage. PHYSICS IN MEDICINE AND BIOLOGY 52: 1209-1219. 2007
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Nissi MJ, Rieppo J, Töyräs J, Laasanen MS, Kiviranta I, Jurvelin JS, Nieminen MT. 2006. T2 relaxation time mapping reveals age- and species-related diversity of collagen network architecture in articular cartilage. OSTEOARTHRITIS AND CARTILAGE 14: 1265-1271. 2006
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Saarakkala S, Laasanen MS, Jurvelin JS, Töyräs J. 2006. Quantitative ultrasound imaging detects degenerative changes in articulas cartilage surface and subchondral bone. PHYSICS IN MEDICINE AND BIOLOGY 51: 5333-5346. 2006
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Riekkinen O, Hakulinen MA, Timonen M, Töyräs J, Jurvelin JS. 2006. Influence of overlying soft tissues on trabecular bone acoustic measurement at various ultrasound frequencies ULTRASOUND IN MEDICINE AND BIOLOGY 32 7: 1073-1083. 2006
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Sierpowska J, Hakulinen MA, Töyräs J, Day JS, Weinans H, Kiviranta I, Jurvelin JS, Lappalainen R. 2006. Interrelationships between electrical proberties and microstructure of human trabecular bone. PHYSICS IN MEDICINE AND BIOLOGY 51: 5289-5303. 2006
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Nieminen HJ, Töyräs J, Laasanen MS, Jurvelin JS. 2006. Acoustic properties articular cartilage under mechanical stress. BIORHEOLOGY 43 3-4: 523-535. 2006
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Kopakkala-Tani M, Leskinen JJ, Karjalainen HM, Karjalainen T, Hynynen K, Töyräs J, Jurvelin JS, Lammi MJ. 2006. Ultrasound stimulates proteoglycan synthesis in bovine primary chondrocytes. BIORHEOLOGY 43: 271-282. 2006
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Kiviranta P, Rieppo J, Korhonen RK, Julkunen P, Töyräs J, Jurvelin JS. 2006. Collagen network primarily controls Poisson's ratio of bovine articular cartilage in compression JOURNAL OF ORTHOPAEDIC RESEARCH 24 4: 690-699. 2006
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Hakulinen MA, Day JS, Töyräs J, Weinans H, Jurvelin JS, Hakulinen MA. 2006. Ultrasonic characterization of human trabecular bone microstructure. PHYSICS IN MEDICINE AND BIOLOGY 51: 1633-1648. 2006
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Laasanen MS, Töyräs J, Vasara A, Saarakkala S, Hyttinen MM, Kiviranta I, Jurvelin JS. 2006. Quantitative ultrasound imaging of spontaneous repair of porcine cartilage. OSTEOARTHRITIS AND CARTILAGE 14: 258-263. 2006
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Hakulinen MA, Day JS, Töyräs J, Timonen M, Kröger H, Weinans H, Kiviranta I, Jurvelin JS, Kröger H. 2005. Prediction of density and mechanical properties of human trabecular bone in vitro by using ultrasound transmission and backscattering measurements at 0.2-6.7 MHz frequency range. PHYSICS IN MEDICINE AND BIOLOGY 50: 1629-1642. 2005
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Laasanen MS, Saarakkala S, Töyräs J, Rieppo J, Jurvelin JS. 2005. Site-specific ultrasound reflection properties and superficial collagen content of bovine knee articular cartilage. PHYSICS IN MEDICINE AND BIOLOGY 50: 3221-3233. 2005
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Sierpowska J, Hakulinen MA, Töyräs J, Day JS, Weinans H, Jurvelin JS, Lappalainen R. 2005. Prediction of mechanical properties of human trabecular bone by electrical measurements. PHYSIOLOGICAL MEASUREMENT 26: S119-S131. 2005
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Töyräs J, Korhonen RK, Voutilainen T, Jurvelin JS, Lappalainen R. 2005. Improvement of arthroscopic cartilage stiffness probe using amorphous diamond coating. JOURNAL OF BIOMEDICAL MATERIALS RESEARCH B. APPLIED BIOMATERIALS 73B: 15-22. 2005
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Nissi MJ, Töyräs J, Laasanen MS, Rieppo J, Saarakkala S, Lappalainen R, Jurvelin JS, Nieminen MT. 2004. Proteoglycan and collagen sensitive MRI evaluation of normal and degenerated articular cartilage. JOURNAL OF ORTHOPAEDIC RESEARCH 22: 557-564. 2004
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Saarakkala S, Töyräs J, Hirvonen J, Laasanen MS, Lappalainen R, Jurvelin JS. 2004. Ultrasonic quantitation of superficial degradation of articular cartilage. ULTRASOUND IN MEDICINE AND BIOLOGY 30 6: 783-792. 2004
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Saarakkala S, Korhonen RK, Laasanen MS, Töyräs J, Rieppo J, Jurvelin JS. 2004. Mechano-acoustic determination of Young's moduls of articular cartilage BIORHEOLOGY 41: 167-179. 2004
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Lammi MJ, Qu C-J, Laasanen MS, Saarakkala S, Rieppo J, Jurvelin JS, Töyräs J. 2004. Undersulfated chondroitin sulfate does not increase in osteoarthritic cartilage. JOURNAL OF RHEUMATOLOGY 31: 2449-2453. 2004
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Nieminen MT, Töyräs J, Laasanen MS, Silvennoinen J, Helminen HJ, Jurvelin JS. 2004. Prediction of biomechanical properties of articular cartilage with quantitative magnetic resonance imaging. JOURNAL OF BIOMECHANICS 37: 321-328. 2004
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Nieminen HJ, Saarakkala S, Laasanen MS, Hirvonen J, Jurvelin JS, Töyräs J. 2004. Ultrasound attenuation in normal and spontaneously degenerated articular cartilage ULTRASOUND IN MEDICINE AND BIOLOGY 30 4: 493-500. 2004
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Hakulinen MA, Töyräs J, Saarakkala S, Hirvonen J, Kröger H, Jurvelin JS, Kröger H. 2004. Ability of ultrasound backscattering to predict mechanical properties of bovine trabecular bone. ULTRASOUND IN MEDICINE AND BIOLOGY 30 7: 919-927. 2004
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Töyräs J, Laasanen MS, Saarakkala S, Lammi MJ, Rieppo J, Kurkijärvi J, Lappalainen R, Jurvelin JS. 2003. Speed of sound in normal and degenerated bovine articular cartilage. ULTRASOUND IN MEDICINE AND BIOLOGY 29 3: 447-454. 2003
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Sierpowska J, Töyräs J, Hakulinen MA, Saarakkala S, Jurvelin JS, Lappalainen R. 2003. Electrical and dielectric properties of bovine trabecular bone - relationship with mechanical properties and mineral density. PHYSICS IN MEDICINE AND BIOLOGY 48: 775-786. 2003
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Saarakkala S, Laasanen MS, Jurvelin JS, Törrönen K, Lammi MJ, Lappalainen R, Töyräs J. 2003. Ultrasound indentation of normal and spontaneously degenerated bovine articular cartilage. OSTEOARTHRITIS AND CARTILAGE 11: 697-705. 2003
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Rieppo J, Töyräs J, Nieminen MT, Kovanen V, Hyttinen MM, Korhonen RK, Jurvelin JS, Helminen HJ. 2003. Structure-function relationships in enzymatically modified articular cartilage. CELLS TISSUES ORGANS 175: 121-132. 2003
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Laasanen MS, Töyräs J, Korhonen RK, Rieppo J, Saarakkala S, Nieminen MT, Hirvonen J, Jurvelin JS. 2003. Biomechanical properties of knee articular cartilage. BIORHEOLOGY 40: 133-140. 2003
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Laasanen MS, Töyräs J, Vasara AI, Hyttinen MM, Saarakkala S, Hirvonen J, Jurvelin JS, Kiviranta I. 2003. Mechano-acoustic diagnosis of cartilage degeneration and repair JOURNAL OF BONE AND JOINT SURGERY (AM) SUPPLEMENT 85-A 2: 78-84. 2003
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Korhonen RK, Saarakkala S, Töyräs J, Laasanen MS, Kiviranta I, Jurvelin JS. 2003. Experimental and numerical validation for the novel configuration of an arthroscopic indentation instrument PHYSICS IN MEDICINE AND BIOLOGY 48: 1565-1576. 2003
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Korhonen RK, Laasanen MS, Töyräs J, Lappalainen R, Helminen HJ, Jurvelin JS. 2003. Fibril reinforced poroelastic model predicts specifically mechanical behavior of normal, proteoglycan depleted and collagen degraded articular cartilage. JOURNAL OF BIOMECHANICS 36: 1373-1379. 2003
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Hakulinen MA, Saarakkala S, Töyräs J, Kröger H, Jurvelin JS. 2003. Dual energy x-ray laser measurement of calcaneal bone mineral density PHYSICS IN MEDICINE AND BIOLOGY 48: 1741-1752. 2003
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Laasanen MS, Saarakkala S, Töyräs J, Hirvonen J, Rieppo J, Korhonen RK, Jurvelin JS. 2003. Ultrasound indentation of bovine knee articular cartilage in situ. JOURNAL OF BIOMECHANICS 36: 1259-1267. 2003
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Nieminen MT, Rieppo J, Silvennoinen J, Töyräs J, Hakumäki JM, Hyttinen MM, Helminen HJ, Jurvelin JS. 2002. Spatial assessment of articular cartilage proteoglycans with Gd-DTPA-enhanced T1 imaging. MAGNETIC RESONANCE IN MEDICINE 48: 640-648. 2002
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Töyräs J, Nieminen HJ, Laasanen MS, Nieminen MT, Korhonen RK, Rieppo J, Hirvonen J, Helminen HJ, Jurvelin JS. 2002. Ultrasonic characterization of articular cartilage. BIORHEOLOGY 39 1,2: 161-169. 2002
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Töyräs J, Nieminen MT, Kröger H, Jurvelin JS. 2002. Bone mineral density, ultrasound velocity, and broadband attenuation predict mechanical properties of trabecular bone differently. BONE 31 4: 503-507. 2002
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Nieminen HJ, Töyräs J, Rieppo J, Nieminen MT, Hirvonen J, Korhonen R, Jurvelin JS. 2002. Real-time ultrasound analysis of articular cartilage degradation in vitro ULTRASOUND IN MEDICINE AND BIOLOGY 28 4: 519-525. 2002
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Laasanen MS, Töyräs J, Hirvonen J, Saarakkala S, Korhonen RK, Nieminen MT, Kiviranta I, Jurvelin JS. 2002. Novel mechano-acoustic technigue and instrument for diagnosis of cartilage degeneration. PHYSIOLOGICAL MEASUREMENT 23: 491-503. 2002
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Korhonen RK, Laasanen MS, Töyräs J, Rieppo J, Hirvonen J, Helminen HJ, Jurvelin JS. 2002. Comparison of the equilibrium response of articular cartilage in unconfined compression, confined compression and indentation. JOURNAL OF BIOMECHANICS 35: 903-909. 2002
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Hyttinen MM, Töyräs J, Lapveteläinen T, Lindblom J, Prockop DJ, Li S-W, Arita M, Jurvelin JS, Helminen HJ. 2001. Inactivation of one allele of the type II collagen gene alters the collagen network in murine articular cartilage and makes cartilage softer. ANNALS OF THE RHEUMATIC DISEASES 60: 262-268. 2001
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Lyyra-Laitinen T, Töyräs J, Kiviranta I, Jurvelin JS. 2001. Development of arthroscopic indentation technique for the diagnosis of cartilage degeneration: Kotila S, Haataja J, CSC Report on Scientific Computing 1999-2000.CSC - Scientific Computing. 181-184. 2001
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Nieminen MT, Rieppo J, Töyräs J, Hakumäki JM, Silvennoinen J, Hyttinen MM, Helminen HJ, Jurvelin JS. 2001. T2 Relaxation reveals spatial collagen architecture in articular cartilage: a comparative quantitative MRI and polarized light microscopic study. MAGNETIC RESONANCE IN MEDICINE 46: 487-493. 2001
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Töyräs J, Lyyra-Laitinen T, Niinimäki M, Lindgren R, Nieminen MT, Kiviranta I, Jurvelin JS. 2001. Estimation of the Young's modulus of articular cartilage using an arthroscopic indentation instrument and ultrasonic measurement of tissue thickness. JOURNAL OF BIOMECHANICS 34: 251-256. 2001
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Töyräs J. 2001. Mechano-Acoustic Characterization of Articular Cartilage and Trabecular Bone. Kuopion yliopiston julkaisuja C. Luonnontieteet ja ympäristötieteet. 2001
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Nieminen MT, Töyräs J, Rieppo J, Hakumäki JM, Silvennoinen J, Helminen HJ, Jurvelin JS. 2000. Quantitative MR microscopy of enzymatically degraded articular cartilage. MAGNETIC RESONANCE IN MEDICINE 43: 676-681. 2000
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Lyyra-Laitinen T, Niinimäki M, Töyräs J, Lindgren R, Kiviranta I, Jurvelin JS. 1999. Optimization of the arthroscopic indentation instrument for the measurement of thin cartilage stiffness. PHYSICS IN MEDICINE AND BIOLOGY 44: 2511-2524. 1999
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Töyräs J, Kröger H, Jurvelin JS. 1999. Bone properties as estimated by mineral density, ultrasound attenuation, and velocity BONE 25 6: 725-731. 1999
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Töyräs J, Rieppo J, Nieminen MT, Helminen HJ, Jurvelin JS. 1999. Characterization of enzymatically induced degradation of articular cartilage using high frequency ultrasound PHYSICS IN MEDICINE AND BIOLOGY 44: 2723-2733. 1999