
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
2008
Journal Article
Indentation diagnostics of cartilage degeneration
Kiviranta, P., Lammentausta, E., Töyräs, J., Kiviranta, I. and Jurvelin, J. S. (2008). Indentation diagnostics of cartilage degeneration. Osteoarthritis and Cartilage, 16 (7), 796-804. doi: 10.1016/j.joca.2007.10.016
2008
Journal Article
The zonal architecture of human articular cartilage described by T2 relaxation time in the presence of Gd-DTPA2-
Kurkijärvi, Jatta E., Nissi, Mikko J., Rieppo, Jarno, Töyräs, Juha, Kiviranta, Ilkka, Nieminen, Miika T. and Jurvelin, Jukka S. (2008). The zonal architecture of human articular cartilage described by T2 relaxation time in the presence of Gd-DTPA2- . Magnetic Resonance Imaging, 26 (5), 602-607. doi: 10.1016/j.mri.2007.10.013
2008
Journal Article
In-Vitro Comparison of Time-Domain, Frequency-Domain and Wavelet Ultrasound Parameters in Diagnostics of Cartilage Degeneration
Kaleva, E., Saarakkala, S., Töyräs, J., Nieminen, H. J. and Jurvelin, J. S. (2008). In-Vitro Comparison of Time-Domain, Frequency-Domain and Wavelet Ultrasound Parameters in Diagnostics of Cartilage Degeneration. Ultrasound in Medicine and Biology, 34 (1), 155-159. doi: 10.1016/j.ultrasmedbio.2007.06.028
2008
Journal Article
A portable device for intensive care brain function monitoring with event-related potentials
Tiihonen, Pekka, Kinnunen, Jukka, Töyräs, Juha, Mervaala, Esa and Pääkkönen, Ari (2008). A portable device for intensive care brain function monitoring with event-related potentials. Computer Methods and Programs in Biomedicine, 89 (1), 83-92. doi: 10.1016/j.cmpb.2007.10.010
2008
Journal Article
Ultrasonic assessment of cortical bone thickness in vitro and in vivo
Karjalainen, Jarme, Riekkinen, Ossi, Töyräs, Juha, Kröger, Heikki and Jurvelin, Jukka (2008). Ultrasonic assessment of cortical bone thickness in vitro and in vivo. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 55 (10) 4638905, 2191-2197. doi: 10.1109/TUFFC.918
2007
Journal Article
Spatial variation of acoustic properties is related with mechanical properties of trabecular bone
Riekkinen, O., Hakulinen, M. A., Töyräs, J. and Jurvelin, J. S. (2007). Spatial variation of acoustic properties is related with mechanical properties of trabecular bone. Physics in Medicine and Biology, 52 (23), 6961-6968. doi: 10.1088/0031-9155/52/23/013
2007
Journal Article
Ultrasound Speed in Articular Cartilage Under Mechanical Compression
Nieminen, Heikki J., Julkunen, Petro, Töyräs, Juha and Jurvelin, Jukka S. (2007). Ultrasound Speed in Articular Cartilage Under Mechanical Compression. Ultrasound in Medicine and Biology, 33 (11), 1755-1766. doi: 10.1016/j.ultrasmedbio.2007.06.001
2007
Journal Article
Effect of human trabecular bone composition on its electrical properties
Sierpowska, J., Lammi, M. J., Hakulinen, M. A., Jurvelin, J. S., Lappalainen, R. and Töyräs, J. (2007). Effect of human trabecular bone composition on its electrical properties. Medical Engineering and Physics, 29 (8), 845-852. doi: 10.1016/j.medengphy.2006.09.007
2007
Journal Article
Quantitative Information From Ultrasound Evaluation of Articular Cartilage Should Be Interpreted With Care
Saarakkala, Simo, Jurvelin, Jukka S., Zheng, Yong-Ping, Nieminen, Heikki J. and Töyräs, Juha (2007). Quantitative Information From Ultrasound Evaluation of Articular Cartilage Should Be Interpreted With Care. Arthroscopy - Journal of Arthroscopic and Related Surgery, 23 (10), 1137-1138. doi: 10.1016/j.arthro.2007.08.015
2007
Journal Article
Estimation of mechanical properties of articular cartilage with MRI - dGEMRIC, T2 and T1 imaging in different species with variable stages of maturation
Nissi, M. J., Rieppo, J., Töyräs, J., Laasanen, M. S., Kiviranta, I., Nieminen, M. T. and Jurvelin, J. S. (2007). Estimation of mechanical properties of articular cartilage with MRI - dGEMRIC, T2 and T1 imaging in different species with variable stages of maturation. Osteoarthritis and Cartilage, 15 (10), 1141-1148. doi: 10.1016/j.joca.2007.03.018
2007
Journal Article
Quantitative MRI of parallel changes of articular cartilage and underlying trabecular bone in degeneration
Lammentausta, E., Kiviranta, P., Töyräs, J., Hyttinen, M. M., Kiviranta, I., Nieminen, M. T. and Jurvelin, J. S. (2007). Quantitative MRI of parallel changes of articular cartilage and underlying trabecular bone in degeneration. Osteoarthritis and Cartilage, 15 (10), 1149-1157. doi: 10.1016/j.joca.2007.03.019
2007
Journal Article
Acoustic Properties of Trabecular Bone-Relationships to Tissue Composition
Riekkinen, O., Hakulinen, M. A., Lammi, M. J., Jurvelin, J. S., Kallioniemi, A. and Töyräs, J. (2007). Acoustic Properties of Trabecular Bone-Relationships to Tissue Composition. Ultrasound in Medicine and Biology, 33 (9), 1438-1444. doi: 10.1016/j.ultrasmedbio.2007.04.004
2007
Journal Article
Contrast agent enhanced pQCT of articular cartilage
Kallioniemi, A. S., Jurvelin, J. S., Nieminen, M. T., Lammi, M. J. and Töyräs, J. (2007). Contrast agent enhanced pQCT of articular cartilage. Physics in Medicine and Biology, 52 (4) 024, 1209-1219. doi: 10.1088/0031-9155/52/4/024
2007
Journal Article
Comparison of novel clinically applicable methodology for sensitive diagnostics of cartilage degeneration
Kiviranta, Panu, Töyräs, J., Nieminen, M. T., Laasanen, M. S., Saarakkala, S., Nieminen, H. J., Nissi, M. J. and Jurvelin, J. S. (2007). Comparison of novel clinically applicable methodology for sensitive diagnostics of cartilage degeneration. European Cells and Materials, 13, 46-55. doi: 10.22203/eCM.v013a05
2007
Journal Article
Human articular cartilage proteoglycans are not undersulfated in osteoarthritis
Qu, Cheng-Juan, Rieppo, Jarno, Hyttinen, Mika, Lammi, Mikko J., Kiviranta, Ilkka, Kurkijärvi, Jatta, Jurvelin, Jukka and Töyräs, Juha (2007). Human articular cartilage proteoglycans are not undersulfated in osteoarthritis. Connective Tissue Research, 48 (1), 27-33. doi: 10.1080/03008200601044128
2006
Journal Article
T2 relaxation time mapping reveals age- and species-related diversity of collagen network architecture in articular cartilage
Nissi, M. J., Rieppo, J., Töyräs, J., Laasanen, M. S., Kiviranta, I., Jurvelin, J. S. and Nieminen, M. T. (2006). T2 relaxation time mapping reveals age- and species-related diversity of collagen network architecture in articular cartilage. Osteoarthritis and Cartilage, 14 (12), 1265-1271. doi: 10.1016/j.joca.2006.06.002
2006
Journal Article
Interrelationships between electrical properties and microstructure of human trabecular bone
Sierpowska, J., Hakulinen, M. A., Töyräs, J., Day, J. S., Weinans, H., Kiviranta, I., Jurvelin, J. S. and Lappalainen, R. (2006). Interrelationships between electrical properties and microstructure of human trabecular bone. Physics in Medicine and Biology, 51 (20) 014, 5289-5303. doi: 10.1088/0031-9155/51/20/014
2006
Journal Article
Quantitative ultrasound imaging detects degenerative changes in articular cartilage surface and subchondral bone
Saarakkala, Simo, Laasanen, Mikko S., Jurvelin, Jukka S. and Töyräs, Juha (2006). Quantitative ultrasound imaging detects degenerative changes in articular cartilage surface and subchondral bone. Physics in Medicine and Biology, 51 (20) 017, 5333-5346. doi: 10.1088/0031-9155/51/20/017
2006
Conference Publication
Acoustic properties of articular cartilage under mechanical stress
Nieminen, Heikki J., Töyräs, Juha, Laasanen, Mikko S. and Jurvelin, Jukka S. (2006). Acoustic properties of articular cartilage under mechanical stress.
2006
Conference Publication
Ultrasound stimulates proteoglycan synthesis in bovine primary chondrocytes
Kopakkala-Tani, Milla, Leskinen, Jarkko J., Karjalainen, Hannu M., Karjalainen, Tero, Hynynen, Kullervo, Töyräs, Juha, Jurvelin, Jukka S. and Lammi, Mikko J. (2006). Ultrasound stimulates proteoglycan synthesis in bovine primary chondrocytes.
Supervision
Availability
- Professor Juha Toyras is:
- Available for supervision
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Supervision history
Current supervision
-
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
Raman spectroscopy for diagnostic tissue assessment
Associate Advisor
Other advisors: Dr Jari Torniainen, Professor Aleksandar Rakic
-
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
Delirium in hospital. Challenging times call for digital measures.
Associate Advisor
Other advisors: Dr Peter Worthy, Professor Nadeeka Dissanayaka
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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