
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
Assessment of the suitability of using a forehead EEG electrode set and chin EMG electrodes for sleep staging in polysomnography
Myllymaa, Sami, Muraja-Murro, Anu, Westeren-Punnonen, Susanna, Hukkanen, Taina, Lappalainen, Reijo, Mervaala, Esa, Töyräs, Juha, Sipilä, Kirsi and Myllymaa, Katja (2016). Assessment of the suitability of using a forehead EEG electrode set and chin EMG electrodes for sleep staging in polysomnography. Journal of Sleep Research, 25 (6), 636-645. doi: 10.1111/jsr.12425
2016
Journal Article
Quantitative evaluation of the mechanical risks caused by focal cartilage defects in the knee
Venäläinen, Mikko S., Mononen, Mika E., Salo, Jari, Räsänen, Lasse P., Jurvelin, Jukka S., Töyräs, Juha, Virén, Tuomas and Korhonen, Rami K. (2016). Quantitative evaluation of the mechanical risks caused by focal cartilage defects in the knee. Scientific Reports, 6 (1) 37538, 1-12. doi: 10.1038/srep37538
2016
Journal Article
Near infrared spectroscopic mapping of functional properties of equine articular cartilage
Sarin, Jaakko K., Amissah, Michael, Brommer, Harold, Argüelles, David, Töyräs, Juha and Afara, Isaac O. (2016). Near infrared spectroscopic mapping of functional properties of equine articular cartilage. Annals of Biomedical Engineering, 44 (11), 3335-3345. doi: 10.1007/s10439-016-1659-6
2016
Journal Article
The AASM 2012 recommended hypopnea criteria increase the incidence of obstructive sleep apnea but not the proportion of positional obstructive sleep apnea
Duce, Brett, Kulkas, Antti, Langton, Christian, Töyräs, Juha and Hukins, Craig (2016). The AASM 2012 recommended hypopnea criteria increase the incidence of obstructive sleep apnea but not the proportion of positional obstructive sleep apnea. Sleep Medicine, 26, 23-29. doi: 10.1016/j.sleep.2016.07.013
2016
Journal Article
Cationic contrast agent diffusion differs between cartilage and meniscus
Honkanen, Juuso T. J., Turunen, Mikael J., Freedman, Jonathan D., Saarakkala, Simo, Grinstaff, Mark W., Ylärinne, Janne H., Jurvelin, Jukka S. and Töyräs, Juha (2016). Cationic contrast agent diffusion differs between cartilage and meniscus. Annals of Biomedical Engineering, 44 (10), 2913-2921. doi: 10.1007/s10439-016-1629-z
2016
Journal Article
Optimal graft stiffness and pre-strain restore normal joint motion and cartilage responses in ACL reconstructed knee
Halonen, K. S., Mononen, M. E., Töyräs, J., Kröger, H., Joukainen, A. and Korhonen, R. K. (2016). Optimal graft stiffness and pre-strain restore normal joint motion and cartilage responses in ACL reconstructed knee. Journal of Biomechanics, 49 (13), 2566-2576. doi: 10.1016/j.jbiomech.2016.05.002
2016
Journal Article
Effect of collagen cross-linking on quantitative MRI parameters of articular cartilage
Rautiainen, J., Nieminen, M. T., Salo, E. N., Kokkonen, H. T., Mangia, S., Michaeli, S., Gröhn, O., Jurvelin, J. S., Töyräs, J. and Nissi, M. J. (2016). Effect of collagen cross-linking on quantitative MRI parameters of articular cartilage. Osteoarthritis and Cartilage, 24 (9), 1656-1664. doi: 10.1016/j.joca.2016.04.017
2016
Journal Article
Differences in acoustic impedance of fresh and embedded human trabecular bone samples - scanning acoustic microscopy and numerical evaluation
Ojanen, Xiaowei, Töyräs, Juha, Inkinen, Satu I., Malo, Markus K. H., Isaksson, Hanna and Jurvelin, Jukka S. (2016). Differences in acoustic impedance of fresh and embedded human trabecular bone samples - scanning acoustic microscopy and numerical evaluation. Journal of the Acoustical Society of America, 140 (3), 1931-1936. doi: 10.1121/1.4962347
2016
Journal Article
Phased-array ultrasound technology enhances accuracy of dual frequency ultrasound measurements – towards improved ultrasound bone diagnostics
Linder, Hans, Malo, Markus K. H., Liukkonen, Jukka, Jurvelin, Jukka S. and Töyräs, Juha (2016). Phased-array ultrasound technology enhances accuracy of dual frequency ultrasound measurements – towards improved ultrasound bone diagnostics. Journal of Medical Engineering and Technology, 40 (6), 293-297. doi: 10.1080/03091902.2016.1185472
2016
Journal Article
Optical coherence tomography enables accurate measurement of equine cartilage thickness for determination of speed of sound
Puhakka, Pia H, te Moller, Nikae C R, Tanska, Petri, Saarakkala, Simo, Tiitu, Virpi, Korhonen, Rami K, Brommer, Harold, Virén, Tuomas, Jurvelin, Jukka S and Töyräs, Juha (2016). Optical coherence tomography enables accurate measurement of equine cartilage thickness for determination of speed of sound. Acta Orthopaedica, 87 (4), 418-424. doi: 10.1080/17453674.2016.1180578
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
Finite difference time domain model of ultrasound propagation in agarose scaffold containing collagen or chondrocytes
Inkinen, Satu I., Liukkonen, Jukka, Malo, Markus K. H., Virén, Tuomas, Jurvelin, Jukka S. and Töyräs, Juha (2016). Finite difference time domain model of ultrasound propagation in agarose scaffold containing collagen or chondrocytes. Journal of the Acoustical Society of America, 140 (1), 1-7. doi: 10.1121/1.4953021
2016
Journal Article
Importance of patella, quadriceps forces, and depthwise cartilage structure on knee joint motion and cartilage response during gait
Halonen, K. S., Mononen, M. E., Jurvelin, J. S., Töyräs, J., Kłodowski, A., Kulmala, J. P. and Korhonen, R. K. (2016). Importance of patella, quadriceps forces, and depthwise cartilage structure on knee joint motion and cartilage response during gait. Journal of Biomechanical Engineering, 138 (7) 071002. doi: 10.1115/1.4033516
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
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
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
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
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
Integrating Wearable Devices into the Patient-Centred Digital Healthcare Environment
Associate Advisor
Other advisors: Associate Professor Chelsea Dobbins
-
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
Obstructive sleep apnoea pathophysiology phenotypes: associations with sleepiness and vigilance
Associate Advisor
Other advisors: Dr Dwayne Mann, 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
-
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
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
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
Delirium in hospital. Challenging times call for digital measures.
Associate Advisor
Other advisors: Professor Gerard Byrne, 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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