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Professor Juha Toyras
Professor

Juha Toyras

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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

399 works between 1999 and 2025

341 - 360 of 399 works

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

Indentation diagnostics of cartilage degeneration

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

The zonal architecture of human articular cartilage described by T2 relaxation time in the presence of Gd-DTPA2-

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

In-Vitro Comparison of Time-Domain, Frequency-Domain and Wavelet Ultrasound Parameters in Diagnostics of Cartilage Degeneration

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

A portable device for intensive care brain function monitoring with event-related potentials

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

Ultrasonic assessment of cortical bone thickness in vitro and in vivo

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

Spatial variation of acoustic properties is related with mechanical properties of trabecular bone

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

Ultrasound Speed in Articular Cartilage Under Mechanical Compression

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

Effect of human trabecular bone composition on its electrical properties

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

Quantitative Information From Ultrasound Evaluation of Articular Cartilage Should Be Interpreted With Care

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

Estimation of mechanical properties of articular cartilage with MRI - dGEMRIC, T2 and T1 imaging in different species with variable stages of maturation

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

Quantitative MRI of parallel changes of articular cartilage and underlying trabecular bone in degeneration

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

Acoustic Properties of Trabecular Bone-Relationships to Tissue Composition

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

Contrast agent enhanced pQCT of articular cartilage

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

Comparison of novel clinically applicable methodology for sensitive diagnostics of cartilage degeneration

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

Human articular cartilage proteoglycans are not undersulfated in osteoarthritis

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

T2 relaxation time mapping reveals age- and species-related diversity of collagen network architecture in articular cartilage

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

Interrelationships between electrical properties and microstructure of human trabecular bone

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

Quantitative ultrasound imaging detects degenerative changes in articular cartilage surface and subchondral bone

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.

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.

Ultrasound stimulates proteoglycan synthesis in bovine primary chondrocytes

Funding

Current funding

  • 2021 - 2025
    Revolution of sleep diagnostics and personalized health care based on digital diagnostics and therapeutics with health data integration
    NHMRC European Union Collaborative Research Grants
    Open grant
  • 2021 - 2025
    Revolution of sleep diagnostics and personalized health care based on digital diagnostics and therapeutics with health data integration
    University of Reykjavik
    Open grant

Past funding

  • 2021 - 2024
    Deep learning and physiology based approach to derive and link obstructive sleep apnoea phenotypes and symptomatology
    NHMRC IDEAS Grants
    Open grant
  • 2021 - 2024
    Osteoarthritis Compass: Personalized prediction of disease onset and progression. (NHMRC Ideas Grant administered by Griffith University)
    Griffith University
    Open grant

Supervision

Availability

Professor Juha Toyras is:
Available for supervision

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Supervision history

Current supervision

Completed supervision

Media

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