
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
2023
Journal Article
Broadband scattering properties of articular cartilage zones and their relationship with the heterogenous structure of articular cartilage extracellular matrix
Kafian-Attari, Iman, Nippolainen, Ervin, Bergmann, Florian, George, Akuroma, Paakkari, Petri, Mirhashemi, Arash, Foschum, Florian, Kienle, Alwin, Töyräs, Juha and Afara, Isaac O. (2023). Broadband scattering properties of articular cartilage zones and their relationship with the heterogenous structure of articular cartilage extracellular matrix. Journal of biomedical optics, 28 (12) 125003, 1-16. doi: 10.1117/1.JBO.28.12.125003
2023
Journal Article
3D T<sub>1</sub> relaxation time measurements in an equine model of subtle post‐traumatic osteoarthritis using MB‐SWIFT
Pala, Swetha, Hänninen, Nina E., Mohammadi, Ali, Ebrahimi, Mohammadhossein, te Moller, Nikae C. R., Brommer, Harold, René van Weeren, P., Mäkelä, Janne T. A., Korhonen, Rami K., Afara, Isaac O., Töyräs, Juha, Mikkonen, Santtu, Nissi, Mikko J. and Nykänen, Olli (2023). 3D T1 relaxation time measurements in an equine model of subtle post‐traumatic osteoarthritis using MB‐SWIFT. Journal of Orthopaedic Research, 41 (12), 2657-2666. doi: 10.1002/jor.25629
2023
Conference Publication
Should Hospitals Do Contract Research? Costs, Net Monetary Benefit, and Return on Public Sector Investments in Research at Kuopio University Hospital
Väätäinen, S., Soini, E. and Töyräs, J. (2023). Should Hospitals Do Contract Research? Costs, Net Monetary Benefit, and Return on Public Sector Investments in Research at Kuopio University Hospital. ISPOR Europe 2023, Copenhagen, Denmark, 11-15 November 2023. New York, NY United States: Elsevier. doi: 10.1016/j.jval.2023.09.562
2023
Journal Article
Review and perspective on sleep-disordered breathing research and translation to clinics
Korkalainen, Henri, Kainulainen, Samu, Islind, Anna Sigridur, Óskarsdóttir, María, Strassberger, Christian, Nikkonen, Sami, Töyräs, Juha, Kulkas, Antti, Grote, Ludger, Hedner, Jan, Sund, Reijo, Hrubos-Strom, Harald, Saavedra, Jose M., Ólafsdóttir, Kristín Anna, Ágústsson, Jón S., Terrill, Philip I., McNicholas, Walter T., Arnardóttir, Erna Sif, Leppänen, Timo and On behalf of SLEEP REVOLUTION (2023). Review and perspective on sleep-disordered breathing research and translation to clinics. Sleep Medicine Reviews, 73 101874, 1-12. doi: 10.1016/j.smrv.2023.101874
2023
Journal Article
Refractive index of human articular cartilage varies with tissue structure and composition
Khan, Bilour, Nippolainen, Ervin, Shahini, Fatemeh, Torniainen, Jari, Mikkonen, Santtu, Nonappa, Popov, Alexey, Töyräs, Juha and Afara, Isaac (2023). Refractive index of human articular cartilage varies with tissue structure and composition. Journal of the Optical Society of America A, 40 (12), 2205-2214. doi: 10.1364/josaa.498722
2023
Journal Article
Self-applied somnography: technical feasibility of electroencephalography and electro-oculography signal characteristics in sleep staging of suspected sleep-disordered adults
Rusanen, Matias, Korkalainen, Henri, Gretarsdottir, Heidur, Siilak, Tiina, Olafsdottir, Kristin Anna, Töyräs, Juha, Myllymaa, Sami, Arnardottir, Erna Sif, Leppänen, Timo and Kainulainen, Samu (2023). Self-applied somnography: technical feasibility of electroencephalography and electro-oculography signal characteristics in sleep staging of suspected sleep-disordered adults. Journal of Sleep Research, 33 (2) e13977, e13977. doi: 10.1111/jsr.13977
2023
Journal Article
Oxygen resaturation rate is significantly associated with objectively assessed excessive daytime sleepiness in suspected obstructive sleep apnoea patients
Howarth, Timothy P., Karhu, Tuomas, Kainulainen, Samu, Chen, Xin, Mahamid, Alaa, Töyräs, Juha and Leppänen, Timo (2023). Oxygen resaturation rate is significantly associated with objectively assessed excessive daytime sleepiness in suspected obstructive sleep apnoea patients. Sleep Medicine, 107, 171-178. doi: 10.1016/j.sleep.2023.04.027
2023
Conference Publication
Nasal pressure derived airflow limitation and ventilation measurements are resilient to reduced signal quality
Staykov, Eric, Mann, Dwayne L, Kainulainen, Samu, Duce, Brett, Leppanen, Timo, Toyras, Juha, Sands, Scott A. and Terrill, Philip I. (2023). Nasal pressure derived airflow limitation and ventilation measurements are resilient to reduced signal quality. 45th Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC), Sydney, Australia, 24-27 July 2023. Piscataway, NJ, United States: Institute of Electrical and Electronics Engineers. doi: 10.1109/embc40787.2023.10340215
2023
Journal Article
Impact of experimental setup parameters on measurement of articular cartilage optical properties in the visible and short near-infrared spectral bands
Kafian-Attari, Iman, Nippolainen, Ervin, Bergmann, Florian, Mirhashemi, Arash, Pakkari, Petri, Foschum, Florian, Kienle, Alwin, Töyräs, Juha and Afara, Isaac (2023). Impact of experimental setup parameters on measurement of articular cartilage optical properties in the visible and short near-infrared spectral bands. Biomedical Optics Express, 14 (7), 3397-3412. doi: 10.1364/boe.488801
2023
Journal Article
Characterisation of cartilage damage via fusing mid-infrared, near-infrared, and Raman spectroscopic data
Shaikh, Rubina, Tafintseva, Valeria, Nippolainen, Ervin, Virtanen, Vesa, Solheim, Johanne, Zimmermann, Boris, Saarakkala, Simo, Töyräs, Juha, Kohler, Achim and Afara, Isaac O. (2023). Characterisation of cartilage damage via fusing mid-infrared, near-infrared, and Raman spectroscopic data. Journal of Personalized Medicine, 13 (7) 1036, 1036. doi: 10.3390/jpm13071036
2023
Journal Article
Visible and near-infrared spectroscopy enables differentiation of normal and early osteoarthritic human knee joint articular cartilage
Linus, Awuniji, Tanska, Petri, Sarin, Jaakko K., Nippolainen, Ervin, Tiitu, Virpi, Mäkelä, Janne. T. A., Töyräs, Juha, Korhonen, Rami K., Mononen, Mika E. and Afara, Isaac O. (2023). Visible and near-infrared spectroscopy enables differentiation of normal and early osteoarthritic human knee joint articular cartilage. Annals of Biomedical Engineering, 51 (10), 2245-2257. doi: 10.1007/s10439-023-03261-7
2023
Journal Article
Raman spectroscopy and machine learning enables estimation of articular cartilage structural, compositional, and functional properties
Shehata, Eslam, Nippolainen, Ervin, Shaikh, Rubina, Ronkainen, Ari-Petteri, Töyräs, Juha, Sarin, Jaakko K. and Afara, Isaac O. (2023). Raman spectroscopy and machine learning enables estimation of articular cartilage structural, compositional, and functional properties. Annals of Biomedical Engineering, 51 (10), 2301-2312. doi: 10.1007/s10439-023-03271-5
2023
Journal Article
Obstructive sleep apnea‐related intermittent hypoxaemia is associated with impaired vigilance
Pahari, Purbanka, Korkalainen, Henri, Karhu, Tuomas, Rissanen, Marika, Arnardottir, Erna Sif, Hrubos‐Strøm, Harald, Duce, Brett, Töyräs, Juha, Leppänen, Timo and Nikkonen, Sami (2023). Obstructive sleep apnea‐related intermittent hypoxaemia is associated with impaired vigilance. Journal of Sleep Research, 32 (3) e13803, 1-9. doi: 10.1111/jsr.13803
2023
Journal Article
A multi-objective based scheduling framework for effective resource utilization in cloud computing
Reddy, Pillareddy Vamsheedhar and Reddy, Karri Ganesh (2023). A multi-objective based scheduling framework for effective resource utilization in cloud computing. IEEE Access, 11, 37178-37193. doi: 10.1109/access.2023.3266294
2023
Journal Article
Deep learning-based algorithm accurately classifies sleep stages in preadolescent children with sleep-disordered breathing symptoms and age-matched controls
Somaskandhan, Pranavan, Leppänen, Timo, Terrill, Philip I., Sigurdardottir, Sigridur, Arnardottir, Erna Sif, Ólafsdóttir, Kristín A., Serwatko, Marta, Sigurðardóttir, Sigurveig Þ., Clausen, Michael, Töyräs, Juha and Korkalainen, Henri (2023). Deep learning-based algorithm accurately classifies sleep stages in preadolescent children with sleep-disordered breathing symptoms and age-matched controls. Frontiers in Neurology, 14 1162998, 1-12. doi: 10.3389/fneur.2023.1162998
2023
Journal Article
Power spectral analysis of the sleep electroencephalogram in positional obstructive sleep apnea
Duce, Brett, Kulkas, Antti, Oksenberg, Arie, Töyräs, Juha and Hukins, Craig (2023). Power spectral analysis of the sleep electroencephalogram in positional obstructive sleep apnea. Sleep Medicine, 104, 83-89. doi: 10.1016/j.sleep.2023.02.021
2023
Conference Publication
Tantalum And Iodine Based Dual-Contrast Photon-Counting Computed Tomography Method For Assessment Of Articular Cartilage Composition
Paakkari, P., Inkinen, S.I., Jäntti, J., Tuppurainen, J., Fugazzola, M.C., Joenathan, A., Ylisiurua, S., Nieminen, M.T., Grinstaff, M.W., Kröger, H., Töyräs, J., Honkanen, J.T. and Mäkelä, J.T. (2023). Tantalum And Iodine Based Dual-Contrast Photon-Counting Computed Tomography Method For Assessment Of Articular Cartilage Composition. 2023 OARSI World Congress on Osteoarthritis, Denver, CO United States, 17-20 March 2023. London, United Kingdom: Elsevier. doi: 10.1016/j.joca.2023.01.278
2023
Conference Publication
TRIPLE CONTRAST COMPUTED TOMOGRAPHY REVEALS SITESPECIFIC DIFFERENCES IN HUMAN KNEE JOINT BIOMECHANICAL PROPERTIES
Orava, H., Paakkari, P., Jantti, J., Honkanen, M. K., Honkanen, J. T., Viren, T., Tanska, P., Korhonen, R. K., Grinstaff, M. W., Toyras, J. and Makela, J. T. (2023). TRIPLE CONTRAST COMPUTED TOMOGRAPHY REVEALS SITESPECIFIC DIFFERENCES IN HUMAN KNEE JOINT BIOMECHANICAL PROPERTIES. World Congress of Osteoarthritis Research Society International (OARSI), Denver Co, Mar 17-20, 2023. OXFORD: ELSEVIER SCI LTD.
2023
Conference Publication
Tantalum Oxide Nanoparticles For Contrast-Enhanced Computed Tomography Diagnosis Of Osteoarthritis
Jäntti, J., Joenathan, A., Honkanen, J.T., Snyder, B.D., Töyräs, J., Grinstaff, M.W., Matikka, H. and Mäkelä, J.T. (2023). Tantalum Oxide Nanoparticles For Contrast-Enhanced Computed Tomography Diagnosis Of Osteoarthritis. 2023 OARSI World Congress on Osteoarthritis, Denver, CO United States, 17-20 March 2023. London, United Kingdom: Elsevier. doi: 10.1016/j.joca.2023.01.262
2023
Conference Publication
TANTALUM AND IODINE BASED DUAL-CONTRAST PHOTONCOUNTING COMPUTED TOMOGRAPHY METHOD FOR ASSESSMENT OF ARTICULAR CARTILAGE COMPOSITION
Paakkari, P., Inkinen, S. I., Jantti, J., Tuppurainen, J., Fugazzola, M. C., Joenathan, A., Ylisiurua, S., Nieminen, M. T., Grinstaff, M. W., Kroger, H., Toyras, J., Honkanen, J. T. and Makela, J. T. (2023). TANTALUM AND IODINE BASED DUAL-CONTRAST PHOTONCOUNTING COMPUTED TOMOGRAPHY METHOD FOR ASSESSMENT OF ARTICULAR CARTILAGE COMPOSITION. World Congress of Osteoarthritis Research Society International (OARSI), Denver Co, Mar 17-20, 2023. OXFORD: ELSEVIER SCI LTD.
Supervision
Availability
- Professor Juha Toyras is:
- Available for supervision
Before you email them, read our advice on how to contact a supervisor.
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
-
2024
Doctor Philosophy
Integrating Wearable Devices into the Patient-Centred Digital Healthcare Environment
Associate Advisor
Other advisors: Associate Professor Chelsea Dobbins
Media
Enquiries
For media enquiries about Professor Juha Toyras's areas of expertise, story ideas and help finding experts, contact our Media team: