
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
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
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
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
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
Deep learning classification of cartilage integrity using near infrared spectroscopy
Afara, Isaac O., Sarin, Jaakko K., Ojanen, Simo, Finnila, Mikko, Herzog, Walter, Saarakkala, Simo, Korhonen, Rami K. and To¨yräs, Juha (2018). Deep learning classification of cartilage integrity using 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.JTu3A.27
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
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
Supervision
Availability
- Professor Juha Toyras is:
- Available for supervision
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Supervision history
Current supervision
-
Doctor Philosophy
Adaptation of Raman spectroscopy for diagnostic assessment of connective tissue integrity
Associate Advisor
Other advisors: Dr Jari Torniainen, Professor Aleksandar Rakic
-
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
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
Raman spectroscopy for diagnostic tissue assessment
Associate Advisor
Other advisors: Dr Jari Torniainen, Professor Aleksandar Rakic
-
Doctor Philosophy
Delirium in hospital. Challenging times call for digital measures.
Associate Advisor
Other advisors: Professor Gerard Byrne, Dr Peter Worthy, Professor Nadeeka Dissanayaka
-
Doctor Philosophy
Artificial intelligence and mechanistic physiology approaches for diagnosing and phenotyping sleep disorders
Associate Advisor
Other advisors: Dr Dwayne Mann, Associate Professor Philip Terrill
-
Doctor Philosophy
Integrating Wearable Devices into the Patient-Centred Digital Healthcare Environment
Associate Advisor
Other advisors: Associate Professor Chelsea Dobbins
-
Doctor Philosophy
Artifical intelligence approaches for diagnosing and phenotyping sleep disorders
Associate Advisor
Other advisors: Dr Shakes Chandra, Associate Professor Philip Terrill
-
Doctor Philosophy
New deep learning based methods for assessment of sleep apnea severity and risk of related short and long term health consequences
Associate Advisor
Other advisors: Dr Shakes Chandra, Associate Professor Philip Terrill
-
Doctor Philosophy
New deep learning based methods for assessment of sleep apnea severity and risk of related short and long term health consequences
Associate Advisor
Other advisors: Dr Shakes Chandra, Associate Professor Philip Terrill
-
Doctor Philosophy
Artificial intelligence and mechanistic physiology approaches for diagnosing and phenotyping sleep disorders
Associate Advisor
Other advisors: Dr Dwayne Mann, Associate Professor Philip Terrill
Completed supervision
-
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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