
Overview
Background
Juha Töyräs holds a position of Professorial Research Fellow in the School of Information Technology and Electrical Engineering, The University of Queensland. He is also is the Head of Research and Innovation, Kuopio University Hospital and Wellbeing Services County of North Savo, and Professor of Medical Physics and Engineering, University of Eastern Finland. He has a PhD degree in the field of medical physics and his research is focused on medical devices and sensors, medical imaging, medical signal processing and connective tissue biomechanics. Since 2004, he has been the Vice/Co-Head of the Biophysics of Bone and Cartilage research group and Co-Head of the Sleep Technology and Analytics group since it was founded in January 2017 at the Department of Applied Physics, University of Eastern Finland. The groups are relatively large (three professors, c.20 research fellows and postdocs and >60 PhD students) and productive (>750 full papers and >80 PhD theses during the last 20 years). Professor Töyräs holds research grants from various European and Australian sources. He has published 323 peer-reviewed full scientific papers and numerous abstracts in international scientific meetings. In addition, he has completed supervision of 52 PhD students and number of MSc students. His papers have been cited over 14000 times and his Hirsch-index is 63 (Google Scholar). Currently, Professor Toyras supervises (University of Eastern Finland, The University of Queensland) c.20 PhD-students and number of research fellows in various fields of biomedical engineering. In addition to scientific publications and supervised academic theses, his work has led to patents and commercialization of scientific innovations. One example of this line of research is the development of a forehead EEG-electrode set for emergency medicine. The Bittium BrainStatus EEG-electrode set is patented, CE-approved and currently in global market (https://www.bittium.com/products_services/medical/bittium_brainstatus).
Availability
- Professor Juha Toyras is:
- Available for supervision
Qualifications
- Masters (Coursework) of Science, University of Kuopio
- Doctor of Philosophy, University of Kuopio
Works
Search Professor Juha Toyras’s works on UQ eSpace
2019
Journal Article
Near infrared spectroscopic evaluation of ligament and tendon biomechanical properties
Torniainen, Jari, Ristaniemi, Aapo, Sarin, Jaakko K., Mikkonen, Santtu, Afara, Isaac O., Stenroth, Lauri, Korhonen, Rami K. and Töyräs, Juha (2019). Near infrared spectroscopic evaluation of ligament and tendon biomechanical properties. Annals of Biomedical Engineering, 47 (1), 213-222. doi: 10.1007/s10439-018-02125-9
2019
Conference Publication
Automated preprocessing of near infrared spectroscopic data
Torniainen, Jari, Afara, Isaac O., Prakash, Mithilesh, Sarin, Jaakko K., Stenroth, Lauri and Töyräs, Juha (2019). Automated preprocessing of near infrared spectroscopic data. Biophotonics Congress: Optics in the Life Sciences Congress 2019 (BODA,BRAIN,NTM,OMA,OMP), Tucson, AZ, United States, 14-17 April 2019. Washington, DC, United States: Optical Society of America. doi: 10.1364/BODA.2019.DS2A.6
2018
Journal Article
Quantitative susceptibility mapping of articular cartilage: ex vivo findings at multiple orientations and following different degradation treatments
Nykänen, Olli, Rieppo, Lassi, Töyräs, Juha, Kolehmainen, Ville, Saarakkala, Simo, Shmueli, Karin and Nissi, Mikko J. (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. doi: 10.1002/mrm.27216
2018
Journal Article
Comparison between kinetic and kinetic-kinematic driven knee joint finite element models
Bolcos, Paul O., Mononen, Mika E., Mohammadi, Ali, Ebrahimi, Mohammadhossein, Tanaka, Matthew S., Samaan, Michael A., Souza, Richard B., Li, Xiaojuan, Suomalainen, Juha-Sampo, Jurvelin, Jukka S., Töyräs, Juha and Korhonen, Rami K. (2018). Comparison between kinetic and kinetic-kinematic driven knee joint finite element models. Scientific Reports, 8 (1) 17351, 17351. doi: 10.1038/s41598-018-35628-5
2018
Journal Article
Accounting for spatial dependency in multivariate spectroscopic data
Prakash, M., Sarin, J. K., Rieppo, L., Afara, I. O. and Töyräs, J. (2018). Accounting for spatial dependency in multivariate spectroscopic data. Chemometrics and Intelligent Laboratory Systems, 182, 166-171. doi: 10.1016/j.chemolab.2018.09.010
2018
Journal Article
Method for segmentation of knee articular cartilages based on contrast-enhanced CT images
Myller, Katariina A. H., Honkanen, Juuso T. J., Jurvelin, Jukka S., Saarakkala, Simo, Töyräs, Juha and 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. doi: 10.1007/s10439-018-2081-z
2018
Journal Article
Differences in arousal probability and duration after apnea and hypopnea events in adult obstructive sleep apnea patients
Leppänen, Timo, Kulkas, Antti, Oksenberg, Arie, Duce, Brett, Mervaala, Esa and 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, 114004. doi: 10.1088/1361-6579/aae42c
2018
Journal Article
Required CPAP usage time to normalize AHI in obstructive sleep apnea patients: a simulation study
Kulkas, Antti, Leppanen, Timo, Kon, Sami Nik, Oksenberg, Arie, Duce, Brett, Mervaala, Esa and Toyras, Juha (2018). Required CPAP usage time to normalize AHI in obstructive sleep apnea patients: a simulation study. Physiological Measurement, 39 (11) 115009, 115009. doi: 10.1088/1361-6579/aae7fe
2018
Journal Article
Bayesian network model to evaluate the effectiveness of continuous positive airway pressure treatment of sleep apnea
Ryynänen, Olli-Pekka, Leppänen, Timo, Kekolahti, Pekka, Mervaala, Esa and 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. doi: 10.4258/hir.2018.24.4.346
2018
Journal Article
Multi-scale imaging techniques to investigate solute transport across articular cartilage
Pouran, Behdad, Arbabi, Vahid, Bajpayee, Ambika G., van Tiel, Jasper, Töyräs, Juha, Jurvelin, Jukka S., Malda, Jos, Zadpoor, Amir A. and Weinans, Harrie (2018). Multi-scale imaging techniques to investigate solute transport across articular cartilage. Journal of Biomechanics, 78, 10-20. doi: 10.1016/j.jbiomech.2018.06.012
2018
Journal Article
Arthroscopic near infrared spectroscopy enables simultaneous quantitative evaluation of articular cartilage and subchondral bone in vivo
Sarin, Jaakko K., te Moller, Nikae C. R., Mancini, Irina A. D., Brommer, Harold, Visser, Jetze, Malda, Jos, van Weeren, P. René, Afara, Isaac O. and Töyräs, Juha (2018). Arthroscopic near infrared spectroscopy enables simultaneous quantitative evaluation of articular cartilage and subchondral bone in vivo. Scientific Reports, 8 (1) 13409, 13409. doi: 10.1038/s41598-018-31670-5
2018
Journal Article
Home polysomnography reveals a first-night effect in patients with low sleep bruxism activity
Miettinen, Tomi, Myllymaa, Katja, Hukkanen, Taina, Töyräs, Juha, Sipilä, Kirsi and 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. doi: 10.5664/jcsm.7278
2018
Journal Article
Characterizing human subchondral bone properties using near-infrared (NIR) spectroscopy
Afara, Isaac O., Florea, Cristina, Olumegbon, Ismail A., Eneh, Chibuzor T., Malo, Markus K. H., Korhonen, Rami K. and Töyräs, Juha (2018). Characterizing human subchondral bone properties using near-infrared (NIR) spectroscopy. Scientific Reports, 8 (1) 9733, 9733. doi: 10.1038/s41598-018-27786-3
2018
Journal Article
Infrared thermography reveals effect of working posture on skin temperature in office workers
Lasanen, Roope, Malo, Markus K.H., Airaksinen, Olavi, Karhu, Jari, Töyräs, Juha and Julkunen, Petro (2018). Infrared thermography reveals effect of working posture on skin temperature in office workers. International Journal of Occupational Safety and Ergonomics, 24 (3), 457-463. doi: 10.1080/10803548.2017.1336299
2018
Journal Article
Quantitative dual contrast CT technique for evaluation of articular cartilage properties
Bhattarai, Abhisek, Honkanen, Juuso T. J., Myller, Katariina A. H., Prakash, Mithilesh, Korhonen, Miitu, Saukko, Annina E. A., Virén, Tuomas, Joukainen, Antti, Patwa, Amit N., Kröger, Heikki, Grinstaff, Mark W., Jurvelin, Jukka S. and Töyräs, Juha (2018). Quantitative dual contrast CT technique for evaluation of articular cartilage properties. Annals of Biomedical Engineering, 46 (7), 1038-1046. doi: 10.1007/s10439-018-2013-y
2018
Journal Article
Success rate and technical quality of home polysomnography with self-applicable electrode set in subjects with possible sleep bruxism
Miettinen, Tomi, Myllymaa, Katja, Westeren-Punnonen, Susanna, Ahlberg, Jari, Hukkanen, Taina, Toyras, Juha, Lappalainen, Reijo, Mervaala, Esa, Sipila, Kirsi and Myllymaa, Sami (2018). 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, 22 (4), 1124-1132. doi: 10.1109/JBHI.2017.2741522
2018
Journal Article
The prevalence of REM-related obstructive sleep apnoea is reduced by the AASM 2012 hypopnoea criteria
Duce, Brett, Kulkas, Antti, Langton, Christian, Töyräs, Juha and Hukins, Craig (2018). The prevalence of REM-related obstructive sleep apnoea is reduced by the AASM 2012 hypopnoea criteria. Sleep and Breathing, 22 (1), 57-64. doi: 10.1007/s11325-017-1526-1
2018
Journal Article
Screen-printed ambulatory electrode set enables accurate diagnostics of sleep bruxism
Miettinen, Tomi, Myllymaa, Katja, Muraja-Murro, Anu, Westeren-Punnonen, Susanna, Hukkanen, Taina, Töyräs, Juha, Lappalainen, Reijo, Mervaala, Esa, Sipilä, Kirsi and Myllymaa, Sami (2018). Screen-printed ambulatory electrode set enables accurate diagnostics of sleep bruxism. Journal of Sleep Research, 27 (1), 103-112. doi: 10.1111/jsr.12536
2018
Conference Publication
Spectroscopic evaluation of post-traumatic osteoarthritis in Shetland ponies
Sarin, Jaakko K., te Moller, Nikae, Brommer, Harold, van Weeren, Rene´, Mancini, Irina, Malda, Jos, Afara, Isaac O. and Töyräs, Juha (2018). Spectroscopic evaluation of post-traumatic osteoarthritis in Shetland ponies. Optical Tomography and Spectroscopy (OTS 2018), Hollywood, FL, United States, 3-6 April 2018. Washington, D.C.: OSA - The Optical Society. doi: 10.1364/OTS.2018.OTu4D.5
2018
Conference Publication
Estimating mechanical properties of bovine knee ligaments and tendons with near infrared spectroscopy
Torniainen, Jari E., Ristaniemi, Aapo, Stenroth, Lauri and To¨yräs, Juha (2018). Estimating mechanical properties of bovine knee ligaments and tendons with near infrared spectroscopy. Clinical and Translational Biophotonics, TRANSLATIONAL 2018, Hollywood, FL United States, 3-6 April 2018. Washington, DC United States: The Optical Society. doi: 10.1364/TRANSLATIONAL.2018.JW3A.29
Supervision
Availability
- Professor Juha Toyras is:
- Available for supervision
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Supervision history
Current supervision
-
Doctor Philosophy
Deep Learning Methods Towards Reliable and Physiology-Aligned Sleep Scoring
Associate Advisor
Other advisors: Dr Shakes Chandra, Associate Professor Philip Terrill
-
Doctor Philosophy
Understanding the Interaction of light with biological tissues: a computational modelling approach
Associate Advisor
-
Doctor Philosophy
Delirium in hospital. Challenging times call for digital measures.
Associate Advisor
Other advisors: Dr Peter Worthy, Professor Nadeeka Dissanayaka
-
Doctor Philosophy
Artifical intelligence approaches for diagnosing and phenotyping sleep disorders
Associate Advisor
Other advisors: Dr Shakes Chandra, Associate Professor Philip Terrill
-
Doctor Philosophy
Obstructive sleep apnoea pathophysiology phenotypes: associations with sleepiness and vigilance
Associate Advisor
Other advisors: Dr Dwayne Mann, Associate Professor Philip Terrill
Completed supervision
-
2025
Doctor Philosophy
Raman spectroscopy for diagnostic tissue assessment
Associate Advisor
Other advisors: Dr Jari Torniainen, Professor Aleksandar Rakic
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2024
Doctor Philosophy
Integrating Wearable Devices into the Patient-Centred Digital Healthcare Environment
Associate Advisor
Other advisors: Associate Professor Chelsea Dobbins
Media
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