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Petro Julkunen

Petro Julkunen

Professor

Professor of medical physics and biomedical engineering

Department of Technical Physics, Faculty of Science, Forestry and Technology

petro.julkunen@uef.fi

Information Publications

I am a part-time professor 50% of time. I am working as a chief physicist (50%) at the Diagnostic Imaging Center, Kuopio University hospital.

My research profile consists presently of neuromodulation of muscle activity and neuroplasticity.

Research groups

Biophysics of Bone and Cartilage (BBC) 01.01.1998 -
Clinical Epilepsy Research 01.01.2010 -
Neuromodulation research group 01.01.2017 -

Keywords

biomechanics biomedical engineering biophysics biosignals medical engineering medical imaging medical physics

Publications

120 items

Automatic electrode scalar location assessment after cochlear implantation using a novel imaging software
Geiger, S; Iso-Mustajärvi, M; Nauwelaers, T; Avci, E; Julkunen, P; Linder, P; Silvast, T; Dietz, A. 2023. Scientific reports. 13: . 12416
Developmental models of motor-evoked potential features by transcranial magnetic stimulation across age groups from childhood to adulthood
Nguyen, Dao T A; Julkunen, Petro; Säisänen, Laura; Määttä, Sara; Rissanen, Saara M; Lintu, Niina; Könönen, Mervi; Lakka, Timo; Karjalainen, Pasi A. 2023. Scientific reports. 13:
EFOMP policy statement 18: Medical physics education for the non-physics healthcare professions
Caruana, Carmel J; Amos, Richard A; Burgos, Diego; Heukelom, Stan; Jeremic, Marija Z; Julkunen, Petro; Karenauskaite, Violeta; Marcu, Loredana; Papanastasiou, Emmanouil; Pesznyak, Csilla. 2023. Physica medica. 111:
Near-threshold recruitment characteristics of motor evoked potentials in transcranial magnetic stimulation
Demjan, Michal; Säisänen, Laura; Reijonen, Jusa; Rissanen, Saara; Määttä, Sara; Julkunen, Petro. 2023. Brain research. 1805:
TMS combined with EEG: Recommendations and open issues for data collection and analysis
Hernandez-Pavon, Julio C; Veniero, Domenica; Bergmann, Til Ole; Belardinelli, Paolo; Bortoletto, Marta; Casarotto, Silvia; Casula, Elias P; Farzan, Faranak; Fecchio, Matteo; Julkunen, Petro; Kallioniemi, Elisa; Lioumis, Pantelis; Metsomaa, Johanna; Miniussi, Carlo; Mutanen, Tuomas P; Rocchi, Lorenzo; Rogasch, Nigel C; Shafi, Mouhsin M; Siebner, Hartwig R; Thut, Gregor; Zrenner, Christoph; Ziemann, Ulf; Ilmoniemi, Risto J. 2023. Brain stimulation. 16: 567-593
X-ray scatter in projection radiography
Ylimaula, Satu; Räsänen, Lasse; Hurskainen, Miia; Peuna, Arttu; Julkunen, Petro; Nieminen, Miika Tapio; Hanni, Matti. 2023. Radiation protection dosimetry. [epub ahead of print 3 Nov 2023]: . ncad275
Bridging the gap: TMS-EEG from lab to clinic
Julkunen, Petro; Kimiskidis, Vasilios K; Belardinelli, Paolo. 2022. Journal of neuroscience methods. 369:
Cyclic loading regime considered beneficial does not protect injured and interleukin-1-inflamed cartilage from post-traumatic osteoarthritis
Eskelinen, Atte SA; Florea, Cristina; Tanska, Petri; Hung, Han-Hwa K.; Frank, Eliot H.; Mikkonen, Santtu; Nieminen, Petteri; Julkunen, Petro; Grodzinsky, Alan J.; Korhonen, Rami K.. 2022. Journal of biomechanics. 141:
Minimum-Norm Estimation of TMS-Activated Motor Cortical Sites in Realistic Head and Brain Geometry
Reijonen, Jusa; Säisänen, Laura; Pitkänen, Minna; Julkunen, Meri; Ilmoniemi, Risto J; Nieminen, Petteri; Julkunen, Petro. 2022. IEEE transactions on neural systems and rehabilitation engineering. 30: 441-454
Modern Developments in Transcranial Magnetic Stimulation: The Editorial
Sollmann, Nico; Julkunen, Petro. 2022. Brain sciences. 12:
Short‐ and long‐interval intracortical inhibition in EPM1 is related to genotype
Silvennoinen, Katri; Säisänen, Laura; Hyppönen, Jelena; Rissanen, Saara M; Karjalainen, Pasi A; D’Ambrosio, Sasha; Jimenez‐Jimenez, Diego; Zagaglia, Sara; Rothwell, John C; Balestrini, Simona; Sisodiya, Sanjay M; Julkunen, Petro; Mervaala, Esa; Kälviäinen, Reetta. 2022. Epilepsia. 2023; 64: 208-217
Special issue on TMS-EEG methods, data analysis and processing
Julkunen, Petro; Kimiskidis, Vasilios K.; Belardinelli, Paolo. 2022. Journal of neuroscience methods. 2023; 383:
T4TE: Team for TMS−EEG and improve reproducibility through an open collaborative initiative
Bortoletto, Marta; Veniero, Domenica; Julkunen, Petro; Hernandez-Pavon, Julio C.; Mutanen, Tuomas P.; Zazio, Agnese; Bagattini, Chiara. 2022. Brain stimulation. 2023; 16: 20-22
The effect of shunt surgery on corticospinal excitability in idiopathic normal pressure hydrocephalus: a transcranial magnetic stimulation study
Sirkka, Jani; Säisänen, Laura; Julkunen, Petro; Könönen, Mervi; Kallioniemi, Elisa; Leinonen, Ville; Danner, Nils. 2022. Fluids and barriers of the cns. 19: . 89
Atlas-informed computational processing pipeline for individual targeting of brain areas for therapeutic navigated transcranial magnetic stimulation
Reijonen, Jusa; Könönen, Mervi; Tuunanen, Pasi; Määttä, Sara; Julkunen, Petro. 2021. Clinical neurophysiology. 132: 1612-1621
Cartilage lesions and interleukin-1-driven inflammation abrogate the beneficial effects of moderate dynamic loading in a bovine cartilage model of post-traumatic osteoarthritis
Eskelinen ASA, Florea C, Mikkonen S, Nieminen P, Julkunen P, Tanska P, Grodzinsky AJ, Korhonen RK. 2021.
Fast acquisition of resting motor threshold with a stimulus-response curve - Possibility or hazard for transcranial magnetic stimulation applications?
Kallioniemi, Elisa; Awiszus, Friedemann; Pitkänen, Minna; Julkunen, Petro. 2021. Clinical neurophysiology practice. 2022; 7: 7-15
Mapping of Motor Function with Neuronavigated Transcranial Magnetic Stimulation: A Review on Clinical Application in Brain Tumors and Methods for Ensuring Feasible Accuracy
Sollmann, Nico; Krieg, Sandro M; Säisänen, Laura; Julkunen, Petro. 2021. Brain sciences. 11: 897
Brain Response Induced with Paired Associative Stimulation Is Related to Repetition Suppression of Motor Evoked Potential
Kariminezhad, Shohreh; Karhu, Jari; Säisänen, Laura; Reijonen, Jusa; Könönen, Mervi; Julkunen, Petro. 2020. Brain sciences. 10: 674
Corticospinal Excitability in Idiopathic Normal Pressure Hydrocephalus: A Transcranial Magnetic Stimulation Study
Sirkka, J; Säisänen, L; Julkunen, P; Könönen, M; Kallioniemi, E; Leinonen, V; Danner, N. 2020. Fluids and barriers of the cns. 17: 6
Mechanobiological Model for Simulation of Injured Cartilage Degradation via Pro-Inflammatory Cytokines and Mechanical Stimulus
Eskelinen, ASA; Tanska, P; Florea, C; Orozco, GA; Julkunen, P; Grodzinsky, AJ; Korhonen, RK. 2020. PLoS computational biology. 16: 1007998
Navigated transcranial magnetic stimulation planning using a structural effectiveness index
Järnefelt Gustaf, Julkunen Petro. 2020.
Paired-pulse navigated TMS is more effective than single-pulse navigated TMS for mapping upper extremity muscles in brain tumor patients
Sollmann, Nico; Zhang, Haosu; Kelm, Anna; Schröder, Axel; Meyer, Bernhard; Pitkänen, Minna; Julkunen, Petro; Krieg, Sandro M. 2020. Clinical neurophysiology. 131: 2887-2898
Primary hand motor representation areas in healthy children, preadolescents, adolescents, and adults
Säisänen, Laura; Könönen, Mervi; Niskanen, Eini; Lakka, Timo; Lintu, Niina; Vanninen, Ritva; Julkunen, Petro; Määttä, Sara. 2020. Neuroimage. 2021; 228: 117702
Short-Interval Intracortical Facilitation Improves Efficacy in nTMS Motor Mapping of Lower Extremity Muscle Representations in Patients with Supra-Tentorial Brain Tumors
Zhang, Haosu; Julkunen, Petro; Schröder, Axel; Kelm, Anna; Ille, Sebastian; Zimmer, Claus; Pitkänen, Minna; Meyer, Bernhard; Krieg, Sandro M; Sollmann, Nico. 2020. Cancers. 12: 3233
Spatial extent of cortical motor hotspot in navigated transcranial magnetic stimulation
Reijonen, Jusa; Pitkänen, Minna; Kallioniemi, Elisa; Mohammadi, Ali; Ilmoniemi, Risto J; Julkunen, Petro. 2020. Journal of neuroscience methods. 346: 108893
Cortical Inhibition of Face and Jaw Muscle Activity and Discomfort Induced by Repetitive and Paired-Pulse TMS During an Overt Object Naming Task
Weiss Lucas, C; Kallioniemi, E; Neuschmelting, V; Nettekoven, C; Pieczewski, J; Jonas, K; Goldbrunner, R; Karhu, J; Grefkes, C; Julkunen, P. 2019. Brain topography. 32: 418-434
Elektrodit, anturit ja stimulaattorit
Julkunen, Petro; Jäppinen, Henri; Tenhunen, Mirja; Kulkas, Antti; Saastamoinen, Antti; Holm, Anu; Starck, Tuomo; Ahtola, Eero; Hälli, Tommi; Mervaala, Esa. Teoksessa: Mervaala, Esa; Haaksiluoto, Erika; Himanen, Sari-Leena; Jääskeläinen, Satu; Kallio, Mika; Vanhatalo, Sampsa(toim.) , 2019. Kliininen neurofysiologia. s. 428-433. Kustannus Oy Duodecim
Functional and structural asymmetry in primary motor cortex in Asperger syndrome: a navigated TMS and imaging study
Säisänen, L; Määttä, S; Julkunen, P; Niskanen, E; Kallioniemi, E; Gröhn, H; Kemppainen, S; Lakka, TA; Lintu, N; Eloranta, AM; Vanninen, R; Makkonen, I; Könönen, M. 2019. Brain topography. 32: 504-518
Interaction between repetition suppression in motor activation and long-interval intracortical inhibition
Kariminezhad, S; Karhu, J; Säisänen, L; Könönen, M; Julkunen, P. 2019. Scientific reports. 9: 11543
Laitteet, luokitukset, standardit ja turvallisuus
Julkunen, Petro; Jäppinen, Henri; Tenhunen, Mirja; Kulkas, Antti; Saastamoinen, Antti; Holm, Anu; Starck, Tuomo; Ahtola, Eero; Hälli, Tommi; Mervaala, Esa. Teoksessa: Mervaala, Esa; Haaksiluoto, Erika; Himanen, Sari-Leena; Jääskeläinen, Satu; Kallio, Mika; Vanhatalo, Sampsa(toim.) , 2019. Kliininen neurofysiologia. s. 422-427. Kustannus Oy Duodecim
Mobile Application for Adaptive Threshold Hunting in Transcranial Magnetic Stimulation
Julkunen, Petro. 2019. IEEE transactions on neural systems and rehabilitation engineering. 27: 1504-1510
Navigoitu TMS (nTMS) ja neuromodulaatio: Kliiniset käyttöaiheet
Julkunen, Petro; Säisänen, Laura. Teoksessa: Mervaala, Esa; Haaksiluoto, Erika; Himanen, Sari-Leena; Jääskeläinen, Satu; Kallio, Mika; Vanhatalo, Sampsa(toim.) , 2019. Kliininen neurofysiologia. s. 356-361. Kustannus Oy Duodecim
Navigoitu TMS (nTMS) ja neuromodulaatio: Laitteisto
Julkunen, Petro. Teoksessa: Mervaala, Esa; Haaksiluoto, Erika; Himanen, Sari-Leena; Jääskeläinen, Satu; Kallio, Mika; Vanhatalo, Sampsa(toim.) , 2019. Kliininen neurofysiologia. s. 355-356. Kustannus Oy Duodecim
Principal Component Regression on Motor Evoked Potential in Single-Pulse Transcranial Magnetic Stimulation
Nguyen, D T A; Rissanen, S M; Julkunen, P; Kallioniemi, E; Karjalainen, P A. 2019. IEEE transactions on neural systems and rehabilitation engineering. 27: 1521-1528
Reproducibility in TMS-EEG studies: A call for data sharing, standard procedures and effective experimental control
Belardinelli, P; Biabani, M; Blumberger, DM; Bortoletto, M; Casarotto, S; David, O; Desideri, D; Etkin, A; Ferrarelli, F; Fitzgerald, PB; Fornito, A; Gordon, PC; Gosseries, O; Harquel, S; Julkunen, P; Keller, CJ; Kimiskidis, VK; Lioumis, P; Miniussi, C; Rosanova, M; et al. 2019. Brain stimulation. 12: 787-790
The effect of coil placement and orientation on the assessment of focal excitability in motor mapping with navigated transcranial magnetic stimulation
Reijonen, Jusa; Säisänen, Laura; Könönen, Mervi; Mohammadi, Ali; Julkunen, Petro. 2019. Journal of neuroscience methods. 331: 108521
Abnormal motor cortical adaptation to external stimulus in Unverricht-Lundborg disease (progressive myoclonus type 1, EPM1)
Julkunen, Petro; Löfberg, Olli; Kallioniemi, Elisa; Hyppönen, Jelena; Kälviäinen, Reetta; Mervaala, Esa. 2018. Journal of neurophysiology. 120: 617-623
Aivokuoren ja kortikospinaaliradan ärtyvyyden palautuminen kuntoutumisen aikana aivohalvauksen jälkeen
Julkunen, Petro. 2018. BestPractice Psykiatria/neurologia: lääketieteen asiantuntijoiden ammattilehti. 21: -
Development of corticospinal motor excitability and cortical silent period from mid-childhood to adulthood - a navigated TMS study
Säisänen, Laura; Julkunen, Petro; Lakka, Timo; Lindi, Virpi; Könönen, Mervi; Määttä; Sara. 2018. Neurophysiologie clinique-clinical neurophysiology. 48: 65-75
Efficient Mapping of the Motor Cortex with Navigated Biphasic Paired-Pulse Transcranial Magnetic Stimulation
Pitkänen, Minna; Kallioniemi, Elisa; Järnefelt, Gustaf; Karhu, Jari; Julkunen, Petro. 2018. Brain topography. 31: 693-971
Individual Characterization of Fast Intracortical Facilitation With Paired Biphasic-Wave Tanscranial Magnetic Stimulation
Mohammadi, Ali; Ebrahimi, Mohammadhossein; Kaartinen, Siru; Jarnefelt, Gustaf; Karhu, Jari; Julkunen, Petro. 2018. IEEE transactions on neural systems and rehabilitation engineering. 26: 1710-1716
Modulation of motor cortical excitability with auditory stimulation
Löfberg, Olli; Julkunen, Petro; Kallioniemi, Elisa; Pääkkönen, Ari; Karhu, Jari. 2018. Journal of neurophysiology. 120: 920-925
Poisson's ratio of bovine meniscus determined combining unconfined and confined compression
Danso, EK; Julkunen, P; Korhonen, RK. 2018. Journal of biomechanics. 77: 233-237
Transcranial magnetic stimulation modulation of corticospinal excitability by targeting cortical I-waves with biphasic paired-pulses
Kallioniemi, Elisa; Savolainen, Petri; Järnefelt, Gustaf; Koskenkorva, Päivi; Karhu, Jari; Julkunen, Petro. 2018. Brain stimulation. 11: 322-326
A computational algorithm to simulate disorganization of collagen network in injured articular cartilage
Tanska, Petri; Julkunen, Petro; Korhonen, Rami K. 2017. Biomechanics and modeling in mechanobiology. 2018; 17: 689-699
Brain plasticity in neurosurgery
Julkunen Petro, Karhu Jari. Teoksessa: Krieg Sandro(toim.) , 2017. Navigated Transcranial Magnetic Stimulation in Neurosurgery. s. 267-285. Springer
Effect of inter-train interval on the induction of repetition suppression of motor-evoked potentials using transcranial magnetic stimulation
Pitkänen Minna, Kallioniemi Elisa, Julkunen Petro. 2017. PLoS ONE. 12: e0181663
Infrared thermography reveals effect of working posture on skin temperature in office workers
Lasanen, R; Malo, MKH; Airaksinen, O; Karhu, J; Töyräs, J; Julkunen, P. 2017. International journal of occupational safety and ergonomics. 2018; 24: 457-463
Minimum-Norm Estimation of Motor Representations in Navigated TMS Mappings
Pitkänen Minna, Kallioniemi Elisa, Julkunen Petro, Nazarova Maria, Nieminen Jaakko O, Ilmoniemi Risto J. 2017. Brain topography. 30: 711-722
Oscillatory TMS-EEG-responses as a Measure of the Cortical Excitability Threshold
Saari Jukka, Kallioniemi Elisa, Tarvainen Mika, Julkunen Petro. 2017. IEEE transactions on neural systems and rehabilitation engineering. 26: 383-391
Paikallisen ja rajautuneen aivoinfarktin krooniset liiketoiminnan ja anatomian muutokset näkyvät vaikka liikeoireista olisi toivuttu
Julkunen Petro. 2017. BestPractice Psykiatria/neurologia: lääketieteen asiantuntijoiden ammattilehti. 5: -
Peri-apneic hemodynamic reactions in obstructive sleep apnea
Muraja-Murro Anu, Nieminen Outi, Julkunen Petro, Töyräs Juha, Laitinen Tomi, Mervaala Esa. 2017. Pathophysiology. 24: 197-203
Treatment of paresis
Karhu Jari, Julkunen Petro. Teoksessa: Krieg Sandro(toim.) , 2017. Navigated Transcranial Magnetic Stimulation in Neurosurgery. s. 233-256. Springer
Alternative Stimulation Intensities for Mapping Cortical Motor Area with Navigated TMS
Julkunen Petro, Kallioniemi Elisa. 2016. Brain topography. 29: 395-404
Facilitatory effect of paired-pulse stimulation by transcranial magnetic stimulation with biphasic wave-form
Julkunen Petro, Järnefelt Gustaf, Savolainen Petri, Laine Jarmo, Karhu Jari. 2016. Medical engineering and physics. 38: 813-817
Functional and structural cortical characteristics after restricted focal motor cortical infarction evaluated at chronic stage : Indications from a preliminary study
Julkunen Petro, Määttä Sara, Säisänen Laura, Kallioniemi Elisa, Könönen Mervi, Jäkälä Pekka, Vanninen Ritva, Vaalto Selja. 2016. Clinical neurophysiology. 127: 2775-2784
Increased Inhibition in Non-Primary Motor Areas of String-Instrument Players: A Preliminary Study with Paired-Pulse Transcranial Magnetic Stimulation
Vaalto Selja, Julkunen Petro, Säisänen Laura, Könönen Mervi, Määttä Sara, Karhu Jari. 2016. Brain plasticity. 1: 223-234
Localization of cortical primary motor area of the hand using navigated transcranial magnetic stimulation, BOLD and arterial spin labeling fMRI
Kallioniemi E, Pitkänen M, Könönen M, Vanninen R, Julkunen P. 2016. Journal of neuroscience methods. 273: 138-148
Longitudinal study on modulated corticospinal excitability throughout recovery in supratentorial stroke
Julkunen Petro, Könönen Mervi, Määttä Sara, Tarkka Ina M, Hiekkala Sinikka H, Säisänen Laura, Vanninen Ritva, Karhu Jari, Jäkälä Pekka. 2016. Neuroscience letters. 617: 88-93
Motor plasticity after extra-intracranial bypass surgery in occlusive cerebrovascular disease
Jussen D, Zdunczyk A, Schmidt S, Rösler J, Buchert R, Julkunen P, Karhu J, Brandt S, Picht T, Vajkoczy P. 2016. Neurology. 87: 27-35
A Fibre-Reinforced Poroviscoelastic Model Accurately Describes the Biomechanical Behaviour of the Rat Achilles Tendon
Khayyeri Hanifeh, Gustafsson Anna, Heuijerjans Ashley, Matikainen Marko K., Julkunen Petro, Eliasson Pernilla, Aspenberg Per, Isaksson Hanna. 2015. PLoS ONE. 10: e0126869
Characterization of site-specific biomechanical properties of human meniscus-Importance of collagen and fluid on mechanical nonlinearities
Danso EK, Mäkelä JTA, Tanska P, Mononen ME, Honkanen JTJ, Jurvelin JS, Töyräs J, Julkunen P, Korhonen RK. 2015. Journal of biomechanics. 48: 1499-1507
Extent and Location of the Excitatory and Inhibitory Cortical Hand Representation Maps: A Navigated Transcranial Magnetic Stimulation Study
Pitkanen Minna, Kallioniemi Elisa, Julkunen Petro. 2015. Brain topography. 28: 657-665
Forehead EEG electrode set versus full-head scalp EEG in 100 patients with altered mental state
Muraja-Murro Anu, Mervaala Esa, Westeren-Punnonen Susanna, Lepola Pasi, Töyräs Juha, Myllymaa Sami, Julkunen Petro, Kantanen Anne-Mari, Kälviäinen Reetta, Myllymaa Katja. 2015. Epilepsy and behavior. 49: 245-249
Functional neuronal anisotropy assessed with neuronavigated transcranial magnetic stimulation
Kallioniemi Elisa, Könönen Mervi, Säisänen Laura, Gröhn Heidi, Julkunen Petro. 2015. Journal of neuroscience methods. 256: 82-90
Input-Output Characteristics of Late Corticospinal Silent Period Induced by Transcranial Magnetic Stimulation
Kallioniemi Elisa, Säisänen Laura, Pitkänen Minna, Könönen Mervi, Karhu Jari, Julkunen Petro. 2015. Journal of clinical neurophysiology. 32: 346-351
Locating and Outlining the Cortical Motor Representation Areas of Facial Muscles With Navigated Transcranial Magnetic Stimulation
Säisänen Laura, Julkunen Petro, Kemppainen Samuli, Danner Nils, Immonen Arto, Mervaala Esa, Määttä Sara, Muraja-Murro Anu, Könönen Mervi. 2015. Neurosurgery. 77: 394-405
Menthol concentration in topical cold gel does not have significant effect on skin cooling
Lasanen R, Julkunen P, Airaksinen O, Töyräs J. 2015. Skin research and technology. 2016; 22: 40-45
Non-invasive mapping of bilateral motor speech areas using navigated transcranial magnetic stimulation and functional magnetic resonance imaging
Könönen Mervi, Tamsi Niko, Säisänen Laura, Kemppainen Samuli, Määttä Sara, Julkunen Petro, Jutila Leena, Äikiä Marja, Kälviäinen Reetta, Niskanen Eini, Vanninen Ritva, Karjalainen Pasi, Mervaala Esa. 2015. Journal of neuroscience methods. 248: 32-40
Onset Latency of Motor Evoked Potentials in Motor Cortical Mapping with Neuronavigated Transcranial Magnetic Stimulation
Kallioniemi Elisa, Pitkänen Minna, Säisänen Laura, Julkunen Petro. 2015. The Open neurology journal. 9: 62-69
Refining the phenotype of Unverricht-Lundborg disease (EPM1): a population-wide Finnish study
Hyppönen Jelena, Äikiä Marja, Joensuu Tarja, Julkunen Petro, Danner Nils, Koskenkorva Päivi, Vanninen Ritva, Lehesjoki Anna-Elina, Mervaala Esa, Kälviäinen Reetta. 2015. Neurology. 84: 1529-1536
Repeatability of functional anisotropy in navigated transcranial magnetic stimulation - coil-orientation versus response
Kallioniemi Elisa, Könönen Mervi, Julkunen Petro. 2015. Neuroreport. 26: 515-521
Repetition suppression in transcranial magnetic stimulation-induced motor-evoked potentials is modulated by cortical inhibition
Kallioniemi Elisa, Pääkkönen Ari, Julkunen Petro. 2015. Neuroscience. 310: 504-511
Thermal imaging in screening of joint inflammation and rheumatoid arthritis in children
Lasanen R, Piippo-Savolainen E, Remes-Pakarinen T, Kröger L, Heikkilä A., Julkunen P., Karhu J, Töyräs J. 2015. Physiological measurement. 36: 273-282
Methods for estimating cortical motor representation size and location in navigated transcranial magnetic stimulation
Julkunen Petro. 2014. Journal of neuroscience methods. 232: 125-133
On the estimation of silent period thresholds in transcranial magnetic stimulation
Kallioniemi Elisa, Säisänen Laura, Könönen Mervi, Awiszus Friedemann, Julkunen Petro. 2014. Clinical neurophysiology. 125: 2247-2252
The auditory-evoked arousal modulates motor cortex excitability
Löfberg O., Julkunen P., Pääkkönen A., Karhua J.. 2014. Neuroscience. 274: 403-408
Desaturation delay, parameter for evaluating severity of sleep disordered breathing
Kulkas A, Tiihonen P, Julkunen P, Mervaala E, Töyräs J. Teoksessa: Long M(toim.) , 2013. World Congress on Medical Physics and Biomedical Engineering May 26-31, 2012, Beijing, China. s. 336-339. Springer Gabler
Feasibility of automated analysis and inter-examiner variability of cortical silent period induced by transcranial magnetic stimulation
Julkunen P, Kallioniemi E, Könönen M, Säisänen L. 2013. Journal of neuroscience methods. 217: 75-81
TMS-EEG reveals impaired intracortical interactions and coherence in Unverricht-Lundborg type progressive myoclonus epilepsy (EPM1)
Julkunen P, Säisänen L, Könönen M, Vanninen R, Kälviäinen R, Mervaala E. 2013. Epilepsy research. S0920-1211: 00103-4
Effect of superficial collagen patterns and fibrillation of femoral articular cartilage on knee joint mechanics-A 3D finite element analysis.
Mononen ME, Mikkola MT, Julkunen P, Ojala R, Nieminen MT, Jurvelin JS, Korhonen RK. 2012. Journal of biomechanics. 45: 579-87
Experimental and computational analysis of soft tissue mechanical response under negative pressure in forearm.
Iivarinen JT, Korhonen RK, Julkunen P, Jurvelin JS.. 2012. Skin research and technology. [Epub ahead of print]: -
Alterations in structure and properties of collagen network of osteoarthritic and repaired cartilage modify knee joint stresses
Mononen ME, Julkunen P, Toyras J, Jurvelin JS, Kiviranta I, Korhonen RK. 2011. Biomechanics and modeling in mechanobiology. 10: 357-369
Assessment of the 3-D shape and mechanics of the proximal femur using a shape template and a bone mineral density image
Sami P. Väänänen, Hanna Isaksson, Petro Julkunen, Joonas Sirola, Heikki Kröger, Jukka S. Jurvelin. 2011. Biomechanics and modeling in mechanobiology. 10: 529-538
Collagen Fibrils of Articular Cartilage Modulate Cell Deformations in Early Osteoarthritis
Tanska P, Julkunen P, Korhonen RK. 2011.
Experimental and computational analysis of soft tissue stiffness in forearm using a manual indentation device
Iivarinen JT, Korhonen RK, Julkunen P, Jurvelin JS.. 2011. Medical engineering and physics. 33: 1245-53
Minor influence of lifelong voluntary exercise on composition, structure, and incidence of osteoarthritis in tibial articular cartilage of mice compared with major effects caused by growth, maturation, and aging
Närhi, Tommi; Siitonen, Ulrika; Lehto, Lauri J; Hyttinen, Mika M; Arokoski, Jari P; Brama, Pieter A; Jurvelin, Jukka S; Helminen, Heikki J; Julkunen, Petro. 2011. Connective tissue research. 52: 380-392
Primary motor cortex alterations in a compound heterozygous form of Unverricht-Lundborg disease (EPM1)
Danner N, Julkunen P, Könönen M, Hyppönen J, Koskenkorva P, Vanninen R, Lehesjoki A-E, Kälviäinen R, Mervaala E. 2011. Seizure: european journal of epilepsy. 20: 65-71
Split-line Patterns and Structural Changes of Cartilage Control Strain and Stress Distributions Within a Knee Joint - A Patient Specific Functional Imaging Study
Mononen ME, Mikkola M, Julkunen P, Ojala R, Nieminen MT, Jurvelin JS and Korhonen RK. Teoksessa: Smith & Nephew, Inc.(toim.) , 2011. Transactions of the Annual Meeting of the Orthopaedic Research Society. ORS 2011 Annual Meeting. s. 36.
Collagen Network of Cartilage Repair Tissue Modifies Intrinsic Stresses of Knee Joint Articular Cartilage
Mononen, M E; Julkunen, P; Jurvelin, J S; Kiviranta, I; Korhonen, R K. Teoksessa: Smith & Nephew, Inc.(toim.) , 2010. Transactions of the Orthopaedic Research Society. s. 914.
Diffusion coefficients of articular cartilage for different CT and MRI contrast agents
Kulmala K.A.M.,Korhonen R.K.,Julkunen P,Jurvelin J.S.,Quinn T.M.,Kröger H,Töyräs J. 2010. Medical engineering and physics. 32: 878-882
Diffusion of CT and MRI contrast agents in articular cartilage in vitro
Kulmala KAM, Korhonen RK, Julkunen P, Jurvelin JS, Quinn TM, Kröger H, Töyräs J. 2010.
Effect of Degenerative Changes of Articular Cartilage on Knee Joint Stresses ¿ Functional Imaging by Combining Clinical MRI and Finite Element Modeling
Mononen, M E; Julkunen, P; Jurvelin, J S; Töyräs, J; Korhonen, R K. Teoksessa: Smith & Nephew, Inc.(toim.) , 2010. Transactions of the Orthopaedic Research Society. s. 865.
Functional imaging of articular cartilage
Jurvelin, J S; Mononen, M E; Julkunen. Teoksessa: -(toim.) , 2010. In Proceedings of the 6th World Congress on Biomechanics. s. -.
Group-Level Variations in Motor Representation Areas of Thenar and Anterior Tibial Muscles: Navigated Transcranial Magnetic Stimulation Study
Niskanen E, Julkunen P, Säisänen L, Vanninen R, Karjalainen P & Könönen M. 2010. Human brain mapping. 31: 1272-1280
Maturation of collagen fibril network structure in tibial and femoral cartilage of rabbits
Julkunen P, Iivarinen J, Brama PA, Arokoski J, Jurvelin JS, Helminen HJ. 2010. Osteoarthritis and cartilage. 18: 406-415
Prediction of 3D proximal femur geometry using planar X-ray image and shape template
Väänänen S.P, Isaksson H, Julkunen P, Jurvelin J.S.. 2010.
Altered cortical inhibition in Unverricht-Lundborg type progressive myoclonus epilepsy (EPM1)
Danner N, Julkunen P, Khyuppenen J, Hukkanen T, Könönen M, Säisänen L, Koskenkorva P, Vanninen R, Lehesjoki AE, Kälviäinen R, Mervaala E, Könönen M. 2009. Epilepsy research. 85: 81-88
Biomechanical, biochemical and structural correlations in immature and mature rabbit articular cartilage
Julkunen P, Harjula T, Iivarinen J, Marjanen J, Seppänen K, Närhi T, Arokoski J, Lammi MJ, Brama PA, Jurvelin JS, Helminen HJ, Julkunen P. 2009. Osteoarthritis and cartilage. 17: 1628-1638
Comparison of navigated and non-navigated transcranial megnetic stimulation for motor cortex mapping, motor threshold and motor evoked potentials
Julkunen P, Säisänen L, Danner N, Niskanen E, Hukkanen T, Mervaala E, Könönen M, Könönen M. 2009. Neuroimage. 44: 790-795
Comparison of single-phase isotropic elastic and fibril-reinforced poroelastic models for indentation of rabbit articular cartilage
Julkunen P, Harjula T, Marjanen J, Helminen HJ, Jurvelin JS. 2009. Journal of biomechanics. 42: 652-656
Composition of the pericellular matrix modulates the deformation behaviour of chondrocytes in articular cartilage under static loading
Julkunen P, Wilson W, Jurvelin JS, Korhonen RK. 2009. Medical and biological engineering and computing. 47: 1281-1290
Differences in acoustic properties of intact and degenerated human patellar cartilage during compression
Kiviranta P, Lammentausta E, Töyräs J, Nieminen HJ, Julkunen P, Kiviranta I, Jurvelin JS. 2009. Ultrasound in medicine and biology. 35: 1367-1375
Strain-dependent modulation of ultrasound speed in articular cartilage under dynamic compression
Lötjönen P, Julkunen P, Töyräs J, Lammi MJ, Jurvelin JS, Nieminen HJ. 2009. Ultrasound in medicine and biology. 35: 1177-1184
Efficient reduction of stimulus artefact in TMS-EEG by epithelial short-circuiting by mini-punctures
Julkunen P, Pääkkönen A, Hukkanen T, Könönen M, Tiihonen P, Vanhatalo S, Karhu J. 2008. Clinical neurophysiology. 119: 475-481
Factors influencing cortical silent period: Optimized stimulus location, intensity and muscle contraction
Säisänen L, Pirinen E, Teitti S, Könönen M, Julkunen P, Määttä S, Karhu J, Könönen M. 2008. Journal of neuroscience methods. 169: 231-238
Importance of collagen orientation and depth-dependent fixed charge densities of cartilage on mechanical behavior of chondrocytes
Korhonen RK, Julkunen P, Wilson W, Herzog W. 2008. Journal of biomechanical engineering: transactions of the ASME. 130: 21003
Mechanical characterization of articular cartilage by combining magnetic resonance imaging and finite-element analysis - a potential functional imaging technique
Julkunen P, Korhonen RK, Nissi MJ, Jurvelin JS. 2008. Physics in medicine and biology. : 2425-2438
Motor potentials evoked by navigated transcranial magnetic stimulation in healthy subjects
Säisänen L, Julkunen P, Niskanen E, Danner N, Hukkanen T, Lohioja T, Nurkkala J, Mervaala E, Karhu J, Könönen M. 2008. Journal of clinical neurophysiology. 25: 367-372
Navigated TMS combined with EEG in mild cognitive impairment and Alzheimer's disease: a pilot study
Julkunen P, Jauhiainen AM, Westerén-Punnonen S, Pirinen E, Soininen H, Könönen M, Pääkkönen A, Määttä S, Karhu J, Könönen M, Soininen H. 2008. Journal of neuroscience methods. 172: 270-276
Navigated transcranial magnetic stimulation and computed electric field strength reduce stimulator-dependent differences in the motor threshold
Danner N, Julkunen P, Könönen M, Könönen M, Säisänen L, Nurkkala J, Karhu J. 2008. Journal of neuroscience methods. 174: 116-122
Parallel input makes the brain run faster
Raij T, Karhu J, Kicic D, Lioumis P, Julkunen P, Lin F-H, Ahveninen J, Ilmoniemi RJ, Mäkelä JP, Hämäläinen M, Rosen BR, Belliveau JW. 2008. Neuroimage. 40: 1792-1797
Relationships between Structure, Composition and Function of Articular Cartilage
Julkunen P, Julkunen P. 2008. Kuopion yliopiston julkaisuja C. Luonnontieteet ja ympäristötieteet
Stress-relaxation of human patellar articular cartilage in unconfined compression: prediction of mechanical response by tissue composition and structure
Julkunen P, Wilson W, Jurvelin JS, Rieppo J, Qu C-J, Lammi MJ, Korhonen RK. 2008. Journal of biomechanics. 41: 1978-1986
Uncertainties in indentation testing of articular cartilage: a fibril-reinforced poroviscoelastic study
Julkunen P, Korhonen RK, Herzog W, Jurvelin JS. 2008. Medical engineering and physics. 30: 506-515
Characterization of articular cartilage by combining microscopic analysis with a fibril-reinforced finite-element model
Julkunen P, Kiviranta P, Wilson W, Jurvelin JS, Korhonen RK. 2007. Journal of biomechanics. 40: 1862-1870
Ultrasound speed in articular cartilage under mechanical compression
Nieminen HJ, Julkunen P, Töyräs J, Jurvelin JS. 2007. Ultrasound in medicine and biology. 33: 1755-1766
Collagen network of articular cartilage modulates fluid flow and mechanical stresses in chondrocyte
Korhonen RK, Julkunen P, Rieppo J, Lappalainen R, Konttinen YT, Jurvelin JS. 2006. Biomechanics and modeling in mechanobiology. 5: 150-159
Collagen network primarily controls Poisson's ratio of bovine articular cartilage in compression
Kiviranta P, Rieppo J, Korhonen RK, Julkunen P, Töyräs J, Jurvelin JS. 2006. Journal of orthopaedic research. 24: 690-699

University of Eastern Finland Joensuu, Kuopio © University of Eastern Finland

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Petro Julkunen

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Keywords

Automatic electrode scalar location assessment after cochlear implantation using a novel imaging software

Developmental models of motor-evoked potential features by transcranial magnetic stimulation across age groups from childhood to adulthood

EFOMP policy statement 18: Medical physics education for the non-physics healthcare professions

Near-threshold recruitment characteristics of motor evoked potentials in transcranial magnetic stimulation

TMS combined with EEG: Recommendations and open issues for data collection and analysis

X-ray scatter in projection radiography

Bridging the gap: TMS-EEG from lab to clinic

Cyclic loading regime considered beneficial does not protect injured and interleukin-1-inflamed cartilage from post-traumatic osteoarthritis

Minimum-Norm Estimation of TMS-Activated Motor Cortical Sites in Realistic Head and Brain Geometry

Modern Developments in Transcranial Magnetic Stimulation: The Editorial

Short‐ and long‐interval intracortical inhibition in EPM1 is related to genotype

Special issue on TMS-EEG methods, data analysis and processing

T4TE: Team for TMS−EEG and improve reproducibility through an open collaborative initiative

The effect of shunt surgery on corticospinal excitability in idiopathic normal pressure hydrocephalus: a transcranial magnetic stimulation study

Atlas-informed computational processing pipeline for individual targeting of brain areas for therapeutic navigated transcranial magnetic stimulation

Cartilage lesions and interleukin-1-driven inflammation abrogate the beneficial effects of moderate dynamic loading in a bovine cartilage model of post-traumatic osteoarthritis

Fast acquisition of resting motor threshold with a stimulus-response curve - Possibility or hazard for transcranial magnetic stimulation applications?

Mapping of Motor Function with Neuronavigated Transcranial Magnetic Stimulation: A Review on Clinical Application in Brain Tumors and Methods for Ensuring Feasible Accuracy

Brain Response Induced with Paired Associative Stimulation Is Related to Repetition Suppression of Motor Evoked Potential

Corticospinal Excitability in Idiopathic Normal Pressure Hydrocephalus: A Transcranial Magnetic Stimulation Study

Mechanobiological Model for Simulation of Injured Cartilage Degradation via Pro-Inflammatory Cytokines and Mechanical Stimulus

Navigated transcranial magnetic stimulation planning using a structural effectiveness index

Paired-pulse navigated TMS is more effective than single-pulse navigated TMS for mapping upper extremity muscles in brain tumor patients

Primary hand motor representation areas in healthy children, preadolescents, adolescents, and adults

Short-Interval Intracortical Facilitation Improves Efficacy in nTMS Motor Mapping of Lower Extremity Muscle Representations in Patients with Supra-Tentorial Brain Tumors

Spatial extent of cortical motor hotspot in navigated transcranial magnetic stimulation

Cortical Inhibition of Face and Jaw Muscle Activity and Discomfort Induced by Repetitive and Paired-Pulse TMS During an Overt Object Naming Task

Elektrodit, anturit ja stimulaattorit

Functional and structural asymmetry in primary motor cortex in Asperger syndrome: a navigated TMS and imaging study

Interaction between repetition suppression in motor activation and long-interval intracortical inhibition

Laitteet, luokitukset, standardit ja turvallisuus

Mobile Application for Adaptive Threshold Hunting in Transcranial Magnetic Stimulation

Navigoitu TMS (nTMS) ja neuromodulaatio: Kliiniset käyttöaiheet

Navigoitu TMS (nTMS) ja neuromodulaatio: Laitteisto

Principal Component Regression on Motor Evoked Potential in Single-Pulse Transcranial Magnetic Stimulation

Reproducibility in TMS-EEG studies: A call for data sharing, standard procedures and effective experimental control

The effect of coil placement and orientation on the assessment of focal excitability in motor mapping with navigated transcranial magnetic stimulation

Abnormal motor cortical adaptation to external stimulus in Unverricht-Lundborg disease (progressive myoclonus type 1, EPM1)

Aivokuoren ja kortikospinaaliradan ärtyvyyden palautuminen kuntoutumisen aikana aivohalvauksen jälkeen

Development of corticospinal motor excitability and cortical silent period from mid-childhood to adulthood - a navigated TMS study

Efficient Mapping of the Motor Cortex with Navigated Biphasic Paired-Pulse Transcranial Magnetic Stimulation

Individual Characterization of Fast Intracortical Facilitation With Paired Biphasic-Wave Tanscranial Magnetic Stimulation

Modulation of motor cortical excitability with auditory stimulation

Poisson's ratio of bovine meniscus determined combining unconfined and confined compression

Transcranial magnetic stimulation modulation of corticospinal excitability by targeting cortical I-waves with biphasic paired-pulses

A computational algorithm to simulate disorganization of collagen network in injured articular cartilage

Brain plasticity in neurosurgery

Effect of inter-train interval on the induction of repetition suppression of motor-evoked potentials using transcranial magnetic stimulation

Infrared thermography reveals effect of working posture on skin temperature in office workers

Minimum-Norm Estimation of Motor Representations in Navigated TMS Mappings

Oscillatory TMS-EEG-responses as a Measure of the Cortical Excitability Threshold

Paikallisen ja rajautuneen aivoinfarktin krooniset liiketoiminnan ja anatomian muutokset näkyvät vaikka liikeoireista olisi toivuttu

Peri-apneic hemodynamic reactions in obstructive sleep apnea

Treatment of paresis

Alternative Stimulation Intensities for Mapping Cortical Motor Area with Navigated TMS

Facilitatory effect of paired-pulse stimulation by transcranial magnetic stimulation with biphasic wave-form

Functional and structural cortical characteristics after restricted focal motor cortical infarction evaluated at chronic stage : Indications from a preliminary study

Increased Inhibition in Non-Primary Motor Areas of String-Instrument Players: A Preliminary Study with Paired-Pulse Transcranial Magnetic Stimulation

Localization of cortical primary motor area of the hand using navigated transcranial magnetic stimulation, BOLD and arterial spin labeling fMRI

Longitudinal study on modulated corticospinal excitability throughout recovery in supratentorial stroke

Motor plasticity after extra-intracranial bypass surgery in occlusive cerebrovascular disease

A Fibre-Reinforced Poroviscoelastic Model Accurately Describes the Biomechanical Behaviour of the Rat Achilles Tendon

Characterization of site-specific biomechanical properties of human meniscus-Importance of collagen and fluid on mechanical nonlinearities

Extent and Location of the Excitatory and Inhibitory Cortical Hand Representation Maps: A Navigated Transcranial Magnetic Stimulation Study

Forehead EEG electrode set versus full-head scalp EEG in 100 patients with altered mental state

Functional neuronal anisotropy assessed with neuronavigated transcranial magnetic stimulation

Input-Output Characteristics of Late Corticospinal Silent Period Induced by Transcranial Magnetic Stimulation

Locating and Outlining the Cortical Motor Representation Areas of Facial Muscles With Navigated Transcranial Magnetic Stimulation

Menthol concentration in topical cold gel does not have significant effect on skin cooling

Non-invasive mapping of bilateral motor speech areas using navigated transcranial magnetic stimulation and functional magnetic resonance imaging

Onset Latency of Motor Evoked Potentials in Motor Cortical Mapping with Neuronavigated Transcranial Magnetic Stimulation

Refining the phenotype of Unverricht-Lundborg disease (EPM1): a population-wide Finnish study

Repeatability of functional anisotropy in navigated transcranial magnetic stimulation - coil-orientation versus response

Repetition suppression in transcranial magnetic stimulation-induced motor-evoked potentials is modulated by cortical inhibition

Thermal imaging in screening of joint inflammation and rheumatoid arthritis in children

Methods for estimating cortical motor representation size and location in navigated transcranial magnetic stimulation