Olli Nykänen - UEFConnect

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Research groups

Biophysics of Bone and Cartilage (BBC) 01.01.1998 -

Publications

19/19 items

Measurement of T1ρ dispersion with compressed sensing and magnetization prepared radial balanced steady‐state free precession in spontaneous human osteoarthritis
Pala, S; Paajanen, A; Ristaniemi, A; Nippolainen, E; Afara, IO; Nykänen, O; Nissi, MJ. 2024. Magnetic resonance in medicine. 92: 2127-2139 A1 Journal article (refereed), original research
3-D T1 relaxation time measurements in an equine model of subtle post-traumatic osteoarthritis using MB-SWIFT
Pala, Swetha; Hänninen, Nina E; Mohammadi, Ali; Ebrahimi, Mohammadhossein; te Moller, Nikae CR; Brommer, Harold; René van Weeren, P; Mäkelä, Janne TA; Korhonen, Rami K; Afara, Isaac O; Töyräs, Juha; Mikkonen, Santtu; Nissi, Mikko J; Nykänen, Olli. 2023. Journal of orthopaedic research. 41: 2657-2666 A1 Journal article (refereed), original research
Fast Compressed Sensing of 3D Radial T1 Mapping with Different Sparse and Low-Rank Models
Paajanen, Antti; Hanhela, Matti; Hänninen, Nina; Nykänen, Olli; Kolehmainen, Ville; Nissi, Mikko J. 2023. Journal of imaging. 9: A1 Journal article (refereed), original research
Deep-Learning-based contrast synthesis from MRF parameter maps in the knee
Nykänen, Olli; Nevalainen, Mika; Casula, Victor; Isosalo, Antti; Inkinen, Satu I.; Nikki, Marko; Lattanzi, Riccardo; Cloos, Martijn A.; Nissi, Mikko J.; Nieminen, Miika T.. 2022. International society for magnetic resonance in medicine annual meeting abstract
Deep‐Learning‐Based Contrast Synthesis From MRF Parameter Maps in the Knee Joint
Nykänen, Olli; Nevalainen, Mika; Casula, Victor; Isosalo, Antti; Inkinen, Satu I.; Nikki, Marko; Lattanzi, Riccardo; Cloos, Martijn A.; Nissi, Mikko J.; Nieminen, Miika T.. 2022. Journal of magnetic resonance imaging. [First published: 23 December 2022]: 1-10 A1 Journal article (refereed), original research
Machine Learning Prediction of Collagen Fiber Orientation and Proteoglycan Content From Multiparametric Quantitative MRI in Articular Cartilage
Mirmojarabian, Seyed Amir; Kajabi, Abdul Wahed; Ketola, Juuso HJ; Nykänen, Olli; Liimatainen, Timo; Nieminen, Miika T; Nissi, Mikko J; Casula, Victor. 2022. Journal of magnetic resonance imaging. 2023; 57: 1056-1068 A1 Journal article (refereed), original research
New methods for robust continuous wave T1ρ relaxation preparation
Pala, Swetha; Hänninen, Nina E; Nykänen, Olli; Liimatainen, Timo; Nissi, Mikko J. 2022. Nmr in biomedicine. 2023; 36: A1 Journal article (refereed), original research
Dual-contrast computed tomography enables detection of equine posttraumatic osteoarthritis in vitro
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. Journal of orthopaedic research
Epiphyseal Cartilage Canal Architecture and Extracellular Matrix Remodeling in Mucopolysaccharidosis VII Dogs at the Onset of Postnatal Growth
Jiang, Zhirui; Johnson, Casey P; Nykänen, Olli; Nissi, Mikko; Lau, Yian Khai; Wu, Meilun; Casal, Margret L; Smith, Lachlan J. 2021. Connective tissue research
Bright ultra-short echo time SWIFT MRI signal at the osteochondral junction is not located in the calcified cartilage
Nykänen, Olli; Leskinen, Henri P P; Finnilä, Mikko; Karhula, Sakari S; Turunen, Mikael J; Töyräs, Juha; Saarakkala, Simo; Nissi, Mikko J. 2020. Journal of orthopaedic research
Evaluation of articular cartilage with quantitative MRI in an equine model of post-traumatic osteoarthritis
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. Journal of orthopaedic research
Magnetic Resonance Imaging of the osteochondral unit: Studies using Quantitative Susceptibility Mapping and SWeep Imaging with Fourier Transform
Nykänen, Olli. 2020. Publications of the University of Eastern Finland. Dissertations in Forestry and Natural Sciences
Orientation anisotropy of quantitative MRI parameters in degenerated human articular cartilage
Hänninen, Nina Elina; Nykänen, Olli; Prakash, Mithilesh; Hanni, Matti; Nieminen, Miika Tapio; Nissi, Mikko Johannes. 2020. Journal of orthopaedic research
Quantitative susceptibility mapping of the rat brain after traumatic brain injury
Chary, Karthik; Nissi, Mikko J; Nykänen, Olli; Manninen, Eppu; Rey, Ramón I; Shmueli, Karin; Sierra, Alejandra; Gröhn, Olli. 2020. Nmr in biomedicine
Arthroscopic Determination of Cartilage Proteoglycan Content and Collagen Network Structure with Near-Infrared Spectroscopy
Sarin, JK; Nykänen, O; Tiitu, V; Mancini, IAD; Brommer, H; Visser, J; Malda, J; van Weeren, PR; Afara, IO; Töyräs, J. 2019. Annals of biomedical engineering
Evaluation of the Suitability of Miniature Pigs as an Animal Model of Juvenile Osteochondritis Dissecans
Tóth, F; Johnson, CP; Mills, B; Nissi, MJ; Nykänen, O; Ellermann, J; Ludwig, KD; Tompkins, M; Carlson, CS. 2019. Journal of orthopaedic research
T2* and quantitative susceptibility mapping in an equine model of post-traumatic osteoarthritis: assessment of mechanical and structural properties of articular cartilage
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. Osteoarthritis and cartilage
Quantitative susceptibility mapping of articular cartilage: Ex vivo findings at multiple orientations and following different degradation treatments
Nykänen, O; Rieppo, L; Töyräs, J; Kolehmainen, V; Saarakkala, S; Shmueli, K; Nissi, MJ. 2018. Magnetic resonance in medicine
Quantitative photoacoustic tomography augmented with surface light measurements
Nykanen O, Pulkkinen A, Tarvainen T. 2017. Biomedical optics express