
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
2016
Journal Article
In vivo evaluation of the potential of high-frequency ultrasound for arthroscopic examination of the shoulder joint
Puhakka, Jani, Afara, Isaac O., Paatela, Teemu, Sormaala, Markus J., Timonen, Matti A., Virén, Tuomas, Jurvelin, Jukka S., Töyräs, Juha and Kiviranta, Ilkka (2016). In vivo evaluation of the potential of high-frequency ultrasound for arthroscopic examination of the shoulder joint. Cartilage, 7 (3), 248-255. doi: 10.1177/1947603515617280
2016
Journal Article
Transport of iodine is different in cartilage and meniscus
Honkanen, J. T.J., Turunen, M. J., Tiitu, V., Jurvelin, J. S. and Töyräs, J. (2016). Transport of iodine is different in cartilage and meniscus. Annals of Biomedical Engineering, 44 (7), 2114-2122. doi: 10.1007/s10439-015-1513-2
2016
Journal Article
Species-independent modeling of high-frequency ultrasound backscatter in hyaline cartilage
Männicke, Nils, Schöne, Martin, Liukkonen, Jukka, Fachet, Dominik, Inkinen, Satu, Malo, Markus K., Oelze, Michael L., Töyräs, Juha, Jurvelin, Jukka S. and Raum, Kay (2016). Species-independent modeling of high-frequency ultrasound backscatter in hyaline cartilage. Ultrasound in Medicine and Biology, 42 (6), 1375-1384. doi: 10.1016/j.ultrasmedbio.2016.01.018
2016
Journal Article
Effect of bone inhomogeneity on tibiofemoral contact mechanics during physiological loading
Venäläinen, M. S., Mononen, M. E., Väänänen, S. P., Jurvelin, J. S., Töyräs, J., Virén, T. and Korhonen, R. K. (2016). Effect of bone inhomogeneity on tibiofemoral contact mechanics during physiological loading. Journal of Biomechanics, 49 (7), 1111-1120. doi: 10.1016/j.jbiomech.2016.02.033
2016
Journal Article
Effect of porosity, tissue density, and mechanical properties on radial sound speed in human cortical bone
Eneh, C. T.M., Malo, M. K.H., Karjalainen, J. P., Liukkonen, J., Töyräs, J. and Jurvelin, J. S. (2016). Effect of porosity, tissue density, and mechanical properties on radial sound speed in human cortical bone. Medical Physics, 43 (5), 2030-2039. doi: 10.1118/1.4942808
2016
Journal Article
Articular cartilage repair with recombinant human type II collagen/polylactide scaffold in a preliminary porcine study
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 and Kiviranta, Ilkka (2016). Articular cartilage repair with recombinant human type II collagen/polylactide scaffold in a preliminary porcine study. Journal of Orthopaedic Research, 34 (5), 745-753. doi: 10.1002/jor.23099
2016
Journal Article
Correlation of subchondral bone density and structure from plain radiographs with micro computed tomography ex vivo
Hirvasniemi, Jukka, Thevenot, Jérôme, Kokkonen, Harri T., Finnilä, Mikko A., Venäläinen, Mikko S., Jämsä, Timo, Korhonen, Rami K., Töyräs, Juha and Saarakkala, Simo (2016). Correlation of subchondral bone density and structure from plain radiographs with micro computed tomography ex vivo. Annals of Biomedical Engineering, 44 (5), 1698-1709. doi: 10.1007/s10439-015-1452-y
2016
Journal Article
RemLogic plug-in enables clinical application of apnea-hypopnea index adjusted for severity of individual obstruction events
Leppänen, Timo, Särkkä, Mikko, Kulkas, Antti, Muraja-Murro, Anu, Kupari, Salla, Anttonen, Meri, Tiihonen, Pekka, Mervaala, Esa and Töyräs, Juha (2016). RemLogic plug-in enables clinical application of apnea-hypopnea index adjusted for severity of individual obstruction events. Journal of Medical Engineering and Technology, 40 (3), 119-126. doi: 10.3109/03091902.2016.1148791
2016
Journal Article
Length of individual apnea events is increased by supine position and modulated by severity of obstructive sleep apnea
Leppänen, Timo, Töyräs, Juha, Muraja-Murro, Anu, Kupari, Salla, Tiihonen, Pekka, Mervaala, Esa and Kulkas, Antti (2016). Length of individual apnea events is increased by supine position and modulated by severity of obstructive sleep apnea. Sleep Disorders, 2016, 9645347-13. doi: 10.1155/2016/9645347
2016
Journal Article
Effect of oxygen desaturation threshold on determination of OSA severity during weight loss
Myllymaa, Katja, Myllymaa, Sami, Leppänen, Timo, Kulkas, Antti, Kupari, Salla, Tiihonen, Pekka, Mervaala, Esa, Seppä, Juha, Tuomilehto, Henri and Töyräs, Juha (2016). Effect of oxygen desaturation threshold on determination of OSA severity during weight loss. Sleep and Breathing, 20 (1), 33-42. doi: 10.1007/s11325-015-1180-4
2016
Journal Article
New method for point-of-care osteoporosis screening and diagnostics
Karjalainen, J. P., Riekkinen, O., Töyräs, J., Jurvelin, J. S. and Kröger, H. (2016). New method for point-of-care osteoporosis screening and diagnostics. Osteoporosis International, 27 (3), 971-977. doi: 10.1007/s00198-015-3387-4
2016
Journal Article
Optical spectroscopic determination of human meniscus composition
Ala-Myllymäki, Juho, Honkanen, Juuso T.J., Töyräs, Juha and Afara, Isaac O. (2016). Optical spectroscopic determination of human meniscus composition. Journal of Orthopaedic Research, 34 (2), 270-278. doi: 10.1002/jor.23025
2016
Journal Article
Menthol concentration in topical cold gel does not have significant effect on skin cooling
Lasanen, R., Julkunen, P., Airaksinen, O. and Töyräs, J. (2016). Menthol concentration in topical cold gel does not have significant effect on skin cooling. Skin Research and Technology, 22 (1), 40-45. doi: 10.1111/srt.12226
2016
Journal Article
Estimation of systematic and spatially correlated components of random signals from repeated measurements: application to contrast enhanced computer tomography measurements
Huttunen, J. M.J., Turunen, M. J., Honkanen, J. T.J., Töyräs, J. and Jurvelin, J. S. (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. doi: 10.1137/15M1017727
2015
Journal Article
A Handy EEG Electrode Set for patients suffering from altered mental state
Lepola, Pasi, Myllymaa, Sami, Töyräs, Juha, Hukkanen, Taina, Mervaala, Esa, Määttä, Sara, Lappalainen, Reijo and 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. doi: 10.1007/s10877-014-9652-9
2015
Journal Article
Estimation of articular cartilage properties using multivariate analysis of optical coherence tomography signal
Puhakka, P. H., te Moller, N. C.R., Afara, I. O., Mäkelä, J. T.A., Tiitu, V., Korhonen, R. K., Brommer, H., Virén, T., Jurvelin, J. S. and Töyräs, J. (2015). Estimation of articular cartilage properties using multivariate analysis of optical coherence tomography signal. Osteoarthritis and Cartilage, 23 (12), 2206-2213. doi: 10.1016/j.joca.2015.05.034
2015
Journal Article
Inter-individual changes in cortical bone three-dimensional microstructure and elastic coefficient have opposite effects on radial sound speed
Eneh, Chibuzor T. M., Liukkonen, Jukka, Malo, Markus K. H., Jurvelin, Jukka S. and Töyräs, Juha (2015). Inter-individual changes in cortical bone three-dimensional microstructure and elastic coefficient have opposite effects on radial sound speed. Journal of the Acoustical Society of America, 138 (6), 3491-3499. doi: 10.1121/1.4934276
2015
Journal Article
Diagnosis of knee osteochondral lesions with ultrasound imaging
Penttilä, Pekko, Liukkonen, Jukka, Joukainen, Antti, Virén, Tuomas, Jurvelin, Jukka S., Töyräs, Juha and Kröger, Heikki (2015). Diagnosis of knee osteochondral lesions with ultrasound imaging. Arthroscopy Techniques, 4 (5), e429-e433. doi: 10.1016/j.eats.2015.04.002
2015
Journal Article
Amount of weight loss or gain influences the severity of respiratory events in sleep apnea
Kulkas, A., Leppänen, T., Sahlman, J., Tiihonen, P., Mervaala, E., Kokkarinen, J., Randell, J., Seppä, J., Töyräs, J. and Tuomilehto, H. (2015). Amount of weight loss or gain influences the severity of respiratory events in sleep apnea. Medical and Biological Engineering and Computing, 53 (10), 975-988. doi: 10.1007/s11517-015-1290-y
2015
Journal Article
Quantitative evaluation of knee subchondral bone mineral density using cone beam computed tomography
Turunen, Mikael J., Töyras, Juha, Kokkonen, Harri T and Jurvelin, Jukka S. (2015). Quantitative evaluation of knee subchondral bone mineral density using cone beam computed tomography. IEEE Transactions on Medical Imaging, 34 (10) 7097073, 2186-2190. doi: 10.1109/TMI.2015.2426684
Supervision
Availability
- Professor Juha Toyras is:
- Available for supervision
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Supervision history
Current supervision
-
Doctor Philosophy
Artifical intelligence approaches for diagnosing and phenotyping sleep disorders
Associate Advisor
Other advisors: Dr Shakes Chandra, Associate Professor Philip Terrill
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Doctor Philosophy
Delirium in hospital. Challenging times call for digital measures.
Associate Advisor
Other advisors: Dr Peter Worthy, Professor Nadeeka Dissanayaka
-
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
Obstructive sleep apnoea pathophysiology phenotypes: associations with sleepiness and vigilance
Associate Advisor
Other advisors: Dr Dwayne Mann, Associate Professor Philip Terrill
-
Doctor Philosophy
Understanding the Interaction of light with biological tissues: a computational modelling approach
Associate Advisor
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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