
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
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
2018
Conference Publication
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 and Töyräs, Juha (2018). Near-infrared spectroscopy based arthroscopic evaluation of human knee joint cartilage, through automated selection of an anatomically specific regression model. 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.OF4D.3
2018
Conference Publication
Near-infrared spectroscopy: A potential tool for mapping meniscus properties
Ala-Myllymäki, Juho, To¨yräs, Juha and Afara, Isaac O. (2018). Near-infrared spectroscopy: A potential tool for mapping meniscus properties. 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.38
2018
Conference Publication
Simulation of required CPAP usage to normalize AHI in obstructive sleep apnea patients
Kulkas, Antti, Nikkonen, Sami, Töyräs, Juha, Mervaala, Esa and Leppänen, Timo (2018). Simulation of required CPAP usage to normalize AHI in obstructive sleep apnea patients. World Congress on Medical Physics and Biomedical Engineering (2018), Prague, Czech Republic, 3-8 June 8 2018. New York, NY, United States: Springer. doi: 10.1007/978-981-10-9038-7_23
2017
Journal Article
Optical spectroscopic characterization of human meniscus biomechanical properties
Ala-Myllymäki, Juho, Danso, Elvis K., Honkanen, Juuso T. J., Korhonen, Rami K., Toÿräs, Juha and Afara, Isaac O. (2017). Optical spectroscopic characterization of human meniscus biomechanical properties. Journal of Biomedical Optics, 22 (12) 125008, 1. doi: 10.1117/1.JBO.22.12.125008
2017
Journal Article
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
Ojanen, X., Tanska, P., Malo, M. K. H., Isaksson, H., Väänänen, S. P., Koistinen, A. P., Grassi, L., Magnusson, S. P., Ribel-Madsen, S. M., Korhonen, R. K., Jurvelin, J. S. and 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. doi: 10.1016/j.jbiomech.2017.10.002
2017
Journal Article
Severity of desaturation events differs between hypopnea and obstructive apnea events and is modulated by their duration in obstructive sleep apnea
Kulkas, Antti, Duce, Brett, Leppänen, Timo, Hukins, Craig and 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. doi: 10.1007/s11325-017-1513-6
2017
Journal Article
Dual contrast CT method enables diagnostics of cartilage injuries and degeneration using a single CT image
Saukko, Annina E. A., Honkanen, Juuso T. J., Xu, Wujun, Väänänen, Sami P., Jurvelin, Jukka S., Lehto, Vesa-Pekka and 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. doi: 10.1007/s10439-017-1916-3
2017
Journal Article
Contrast-enhanced computed tomography enables quantitative evaluation of tissue properties at intrajoint regions in cadaveric knee cartilage
Stewart, Rachel C., Honkanen, Juuso T.J., Kokkonen, Harri T., Tiitu, Virpi, Saarakkala, Simo, Joukainen, Antti, Snyder, Brian D., Jurvelin, Jukka S., Grinstaff, Mark W. and Töyräs, Juha (2017). Contrast-enhanced computed tomography enables quantitative evaluation of tissue properties at intrajoint regions in cadaveric knee cartilage. Cartilage, 8 (4), 391-399. doi: 10.1177/1947603516665443
2017
Journal Article
Optimal regression method for near-infrared spectroscopic evaluation of articular cartilage
Prakash, Mithilesh, Sarin, Jaakko K., Rieppo, Lassi, Afara, Isaac O. and Töyräs, Juha (2017). Optimal regression method for near-infrared spectroscopic evaluation of articular cartilage. Applied Spectroscopy, 71 (10), 2253-2262. doi: 10.1177/0003702817726766
2017
Journal Article
Combination of optical coherence tomography and near infrared spectroscopy enhances determination of articular cartilage composition and structure
Sarin, Jaakko K., Rieppo, Lassi, Brommer, Harold, Afara, Isaac O., Saarakkala, Simo and 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, 10586. doi: 10.1038/s41598-017-10973-z
2017
Journal Article
Ultrasound assessment of human meniscus
Viren, Tuomas, Honkanen, Juuso T., Danso, Elvis K., Rieppo, Lassi, Korhonen, Rami K. and Töyräs, Juha (2017). Ultrasound assessment of human meniscus. Ultrasound in Medicine and Biology, 43 (9), 1753-1763. doi: 10.1016/j.ultrasmedbio.2017.01.020
2017
Journal Article
Severity of individual obstruction events increases with age in patients with obstructive sleep apnea
Leppänen, Timo, Töyräs, Juha, Mervaala, Esa, Penzel, Thomas and Kulkas, Antti (2017). Severity of individual obstruction events increases with age in patients with obstructive sleep apnea. Sleep Medicine, 37, 32-37. doi: 10.1016/j.sleep.2017.06.004
2017
Journal Article
Peri-apneic hemodynamic reactions in obstructive sleep apnea
Muraja-Murro, Anu, Nieminen, Outi, Julkunen, Petro, Töyräs, Juha, Laitinen, Tomi and Mervaala, Esa (2017). Peri-apneic hemodynamic reactions in obstructive sleep apnea. Pathophysiology, 24 (3), 197-203. doi: 10.1016/j.pathophys.2017.05.003
2017
Journal Article
Corrigendum to “Multimodality scoring of chondral injuries in the equine fetlock joint ex vivo” [Osteoarthritis Cartilage 25 (5) (2017 May) 790–798] (S1063458416304666), (10.1016/j.joca.2016.12.007))
Sarin, J. K., Brommer, H., Argüelles, D., Puhakka, P. H., Inkinen, S. I., Afara, I. O., Saarakkala, S. and 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] (S1063458416304666), (10.1016/j.joca.2016.12.007)). Osteoarthritis and Cartilage, 25 (8), 1377-1378. doi: 10.1016/j.joca.2017.05.010
2017
Journal Article
Ultrasound arthroscopy of hip in treatment of osteochondritis dissecans
Joukainen, Antti, Virén, Tuomas, Penttilä, Pekko, Liukkonen, Jukka, Puhakka, Pia Henriikka, Kröger, Heikki and Töyräs, Juha (2017). Ultrasound arthroscopy of hip in treatment of osteochondritis dissecans. Arthroscopy Techniques, 6 (4), e1063-e1068. doi: 10.1016/j.eats.2017.03.022
2017
Journal Article
Gender differences in severity of desaturation events following hypopnea and obstructive apnea events in adults during sleep
Kulkas, Antti, Duce, Brett, Leppänen, Timo, Hukins, Craig and 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. doi: 10.1088/1361-6579/aa7b6f
2017
Journal Article
Semi-automated International Cartilage Repair Society scoring of equine articular cartilage lesions in optical coherence tomography images
te Moller, N. C.R., Pitkänen, M., Sarin, J. K., Väänänen, S., Liukkonen, J., Afara, I. O., Puhakka, P. H., Brommer, H., Niemelä, T., Tulamo, R. M., Argüelles Capilla, D. and Töyräs, J. (2017). Semi-automated International Cartilage Repair Society scoring of equine articular cartilage lesions in optical coherence tomography images. Equine Veterinary Journal, 49 (4), 552-558. doi: 10.1111/evj.12637
2017
Journal Article
Severity of individual obstruction events is gender dependent in sleep apnea
Leppänen, Timo, Kulkas, Antti, Duce, Brett, Mervaala, Esa and Töyräs, Juha (2017). Severity of individual obstruction events is gender dependent in sleep apnea. Sleep and Breathing, 21 (2), 397-404. doi: 10.1007/s11325-016-1430-0
2017
Journal Article
Multimodality scoring of chondral injuries in the equine fetlock joint ex vivo
Sarin, J. K., Brommer, H., Argüelles, D., Puhakka, P. H., Inkinen, S. I., Afara, I. O., Saarakkala, S. and Töyräs, J. (2017). Multimodality scoring of chondral injuries in the equine fetlock joint ex vivo. Osteoarthritis and Cartilage, 25 (5), 790-798. doi: 10.1016/j.joca.2016.12.007
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
-
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
-
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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