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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

398 works between 1999 and 2025

161 - 180 of 398 works

2019

Journal Article

T2* and quantitative susceptibility mapping in an equine model of post-traumatic osteoarthritis: assessment of mechanical and structural properties of articular cartilage

Nykänen, O., Sarin, J. K., Ketola, J. H., Leskinen, H., te Moller, N. C.R., Tiitu, V., Mancini, I. A.D., Visser, J., Brommer, H., van Weeren, P. R., Malda, J., Töyräs, J. and Nissi, M. J. (2019). T2* and quantitative susceptibility mapping in an equine model of post-traumatic osteoarthritis: assessment of mechanical and structural properties of articular cartilage. Osteoarthritis and Cartilage, 27 (10), 1481-1490. doi: 10.1016/j.joca.2019.06.009

T2* and quantitative susceptibility mapping in an equine model of post-traumatic osteoarthritis: assessment of mechanical and structural properties of articular cartilage

2019

Journal Article

Simultaneous quantitation of cationic and non-ionic contrast agents in articular cartilage using synchrotron MicroCT imaging

Saukko, Annina E. A., Turunen, Mikael J., Honkanen, Miitu K. M., Lovric, Goran, Tiitu, Virpi, Honkanen, Juuso T. J., Grinstaff, Mark W., Jurvelin, Jukka S. and Töyräs, Juha (2019). Simultaneous quantitation of cationic and non-ionic contrast agents in articular cartilage using synchrotron MicroCT imaging. Scientific Reports, 9 (1) 7118, 7118. doi: 10.1038/s41598-019-43276-6

Simultaneous quantitation of cationic and non-ionic contrast agents in articular cartilage using synchrotron MicroCT imaging

2019

Journal Article

The hypoxic burden: also known as the desaturation severity parameter

Leppänen, Timo, Kulkas, Antti and Töyräs, Juha (2019). The hypoxic burden: also known as the desaturation severity parameter. European Heart Journal, 40 (35), 2991-2993. doi: 10.1093/eurheartj/ehz271

The hypoxic burden: also known as the desaturation severity parameter

2019

Journal Article

Imaging of proteoglycan and water contents in human articular cartilage with full-body CT using dual contrast technique

Honkanen, Miitu K. M., Matikka, Hanna, Honkanen, Juuso T. J., Bhattarai, Abhisek, Grinstaff, Mark W., Joukainen, Antti, Kröger, Heikki, Jurvelin, Jukka S. and Töyräs, Juha (2019). Imaging of proteoglycan and water contents in human articular cartilage with full-body CT using dual contrast technique. Journal of Orthopaedic Research, 37 (5) jor.24256, 1059-1070. doi: 10.1002/jor.24256

Imaging of proteoglycan and water contents in human articular cartilage with full-body CT using dual contrast technique

2019

Journal Article

Computational evaluation of altered biomechanics related to articular cartilage lesions observed in vivo

Myller, Katariina A. H., Korhonen, Rami K., Töyräs, Juha, Salo, Jari, Jurvelin, Jukka S. and Venäläinen, Mikko S. (2019). Computational evaluation of altered biomechanics related to articular cartilage lesions observed in vivo. Journal of Orthopaedic Research, 37 (5) jor.24273, 1042-1051. doi: 10.1002/jor.24273

Computational evaluation of altered biomechanics related to articular cartilage lesions observed in vivo

2019

Conference Publication

Arthroscopic near-infrared spectroscopic prediction of human meniscus properties

Ala-Myllymäki, Juho, Paakkonen, Tommi, Töyräsa, Juha and Afara, Isaac O. (2019). Arthroscopic near-infrared spectroscopic prediction of human meniscus properties. Bio-Optics: Design and Application 2019, Tucson, AZ, United States, 14–17 April 2019. Washington, D.C.: Optical Society of America (OSA). doi: 10.1364/BODA.2019.JT4A.35

Arthroscopic near-infrared spectroscopic prediction of human meniscus properties

2019

Journal Article

Publisher Correction: Quantitative evaluation of the mechanical risks caused by focal cartilage defects in the knee (Scientific Reports, (2016), 6, 1, (37538), 10.1038/srep37538)

Venäläinen, Mikko S., Mononen, Mika E., Salo, Jari, Räsänen, Lasse P., Jurvelin, Jukka S., Töyräs, Juha, Virén, Tuomas and Korhonen, Rami K. (2019). Publisher Correction: Quantitative evaluation of the mechanical risks caused by focal cartilage defects in the knee (Scientific Reports, (2016), 6, 1, (37538), 10.1038/srep37538). Scientific Reports, 9 (1) 5660, 5660. doi: 10.1038/s41598-019-41384-x

Publisher Correction: Quantitative evaluation of the mechanical risks caused by focal cartilage defects in the knee (Scientific Reports, (2016), 6, 1, (37538), 10.1038/srep37538)

2019

Conference Publication

Detection of enzymatically and mechanically induced degradation of bovine articular cartilage tissue with mid-infrared spectroscopy

Virtanen, V. K., Nippolainen, E., Shaikh, R., Afara, I., Toyras, J., Saarakkala, S. and Rieppo, L. (2019). Detection of enzymatically and mechanically induced degradation of bovine articular cartilage tissue with mid-infrared spectroscopy. OARSI World Congress on Osteoarthritis - Promoting Clinical and Basic Research in Osteoarthritis, Toronto, Canada, 2-5 May 2019. Oxford, United Kingdom: Elsevier . doi: 10.1016/j.joca.2019.02.035

Detection of enzymatically and mechanically induced degradation of bovine articular cartilage tissue with mid-infrared spectroscopy

2019

Conference Publication

Mid-infrared spectroscopic assessment of cartilage degeneration

Shaikh, Rubina, Nippolainen, Ervin, Virtanen, Vesa, Rieppo, Lassi, Haas, Julian, Mizaikoff, Boris, Artyushenko, Viacheslav, Bibikova, Olga, Afara, Isaac, Saarakkala, Simo and Töyräs, Juha (2019). Mid-infrared spectroscopic assessment of cartilage degeneration. Biophotonics Congress, Tucson, AZ, United States, 14–17 April 2019. Washington, D.C.: Optical Society of America (OSA). doi: 10.1364/BODA.2019.DS1A.3

Mid-infrared spectroscopic assessment of cartilage degeneration

2019

Journal Article

Improved sweat artifact tolerance of screen-printed EEG electrodes by material selection-comparison of electrochemical properties in artificial sweat

Kalevo, Laura, Miettinen, Tomi, Leino, Akseli, Kainulainen, Samu, Myllymaa, Katja, Toyras, Juha, Leppanen, Timo and Myllymaa, Sami (2019). Improved sweat artifact tolerance of screen-printed EEG electrodes by material selection-comparison of electrochemical properties in artificial sweat. IEEE Access, 7 8835030, 133237-133247. doi: 10.1109/ACCESS.2019.2941052

Improved sweat artifact tolerance of screen-printed EEG electrodes by material selection-comparison of electrochemical properties in artificial sweat

2019

Conference Publication

Mid-infrared and near infrared spectroscopic analysis of mechanically and enzymatically damaged cartilage

Nippolainen, Ervin, Shaikh, Rubina, Virtanen, Vesa, Rieppo, Lassi, Afara, Isaac, Saarakkala, Simo and Töyräs, Juha (2019). Mid-infrared and near infrared spectroscopic analysis of mechanically and enzymatically damaged cartilage. Biophotonics Congress: Optics in the Life Sciences Congress 2019 (BODA,BRAIN,NTM,OMA,OMP), Tucson, AZ USA, 14-17 April 2019. Washington, DC USA: Optical Society of America. doi: 10.1364/BODA.2019.JT4A.37

Mid-infrared and near infrared spectroscopic analysis of mechanically and enzymatically damaged cartilage

2019

Journal Article

Increase in body mass index decreases duration of apneas and hypopneas in obstructive sleep apnea

Leppänen, Timo, Kulkas, Antti, Mervaala, Esa and Töyräs, Juha (2019). Increase in body mass index decreases duration of apneas and hypopneas in obstructive sleep apnea. Respiratory Care, 64 (1), 77-84. doi: 10.4187/respcare.06297

Increase in body mass index decreases duration of apneas and hypopneas in obstructive sleep apnea

2019

Journal Article

Near infrared spectroscopic evaluation of ligament and tendon biomechanical properties

Torniainen, Jari, Ristaniemi, Aapo, Sarin, Jaakko K., Mikkonen, Santtu, Afara, Isaac O., Stenroth, Lauri, Korhonen, Rami K. and Töyräs, Juha (2019). Near infrared spectroscopic evaluation of ligament and tendon biomechanical properties. Annals of Biomedical Engineering, 47 (1), 213-222. doi: 10.1007/s10439-018-02125-9

Near infrared spectroscopic evaluation of ligament and tendon biomechanical properties

2019

Conference Publication

Automated preprocessing of near infrared spectroscopic data

Torniainen, Jari, Afara, Isaac O., Prakash, Mithilesh, Sarin, Jaakko K., Stenroth, Lauri and Töyräs, Juha (2019). Automated preprocessing of near infrared spectroscopic data. Biophotonics Congress: Optics in the Life Sciences Congress 2019 (BODA,BRAIN,NTM,OMA,OMP), Tucson, AZ, United States, 14-17 April 2019. Washington, DC, United States: Optical Society of America. doi: 10.1364/BODA.2019.DS2A.6

Automated preprocessing of near infrared spectroscopic data

2018

Journal Article

Quantitative susceptibility mapping of articular cartilage: ex vivo findings at multiple orientations and following different degradation treatments

Nykänen, Olli, Rieppo, Lassi, Töyräs, Juha, Kolehmainen, Ville, Saarakkala, Simo, Shmueli, Karin and Nissi, Mikko J. (2018). Quantitative susceptibility mapping of articular cartilage: ex vivo findings at multiple orientations and following different degradation treatments. Magnetic Resonance in Medicine, 80 (6), 2702-2716. doi: 10.1002/mrm.27216

Quantitative susceptibility mapping of articular cartilage: ex vivo findings at multiple orientations and following different degradation treatments

2018

Journal Article

Comparison between kinetic and kinetic-kinematic driven knee joint finite element models

Bolcos, Paul O., Mononen, Mika E., Mohammadi, Ali, Ebrahimi, Mohammadhossein, Tanaka, Matthew S., Samaan, Michael A., Souza, Richard B., Li, Xiaojuan, Suomalainen, Juha-Sampo, Jurvelin, Jukka S., Töyräs, Juha and Korhonen, Rami K. (2018). Comparison between kinetic and kinetic-kinematic driven knee joint finite element models. Scientific Reports, 8 (1) 17351, 17351. doi: 10.1038/s41598-018-35628-5

Comparison between kinetic and kinetic-kinematic driven knee joint finite element models

2018

Journal Article

Method for segmentation of knee articular cartilages based on contrast-enhanced CT images

Myller, Katariina A. H., Honkanen, Juuso T. J., Jurvelin, Jukka S., Saarakkala, Simo, Töyräs, Juha and Väänänen, Sami P. (2018). Method for segmentation of knee articular cartilages based on contrast-enhanced CT images. Annals of Biomedical Engineering, 46 (11), 1756-1767. doi: 10.1007/s10439-018-2081-z

Method for segmentation of knee articular cartilages based on contrast-enhanced CT images

2018

Journal Article

Accounting for spatial dependency in multivariate spectroscopic data

Prakash, M., Sarin, J. K., Rieppo, L., Afara, I. O. and Töyräs, J. (2018). Accounting for spatial dependency in multivariate spectroscopic data. Chemometrics and Intelligent Laboratory Systems, 182, 166-171. doi: 10.1016/j.chemolab.2018.09.010

Accounting for spatial dependency in multivariate spectroscopic data

2018

Journal Article

Differences in arousal probability and duration after apnea and hypopnea events in adult obstructive sleep apnea patients

Leppänen, Timo, Kulkas, Antti, Oksenberg, Arie, Duce, Brett, Mervaala, Esa and Töyräs, Juha (2018). Differences in arousal probability and duration after apnea and hypopnea events in adult obstructive sleep apnea patients. Physiological Measurement, 39 (11) 114004, 114004. doi: 10.1088/1361-6579/aae42c

Differences in arousal probability and duration after apnea and hypopnea events in adult obstructive sleep apnea patients

2018

Journal Article

Required CPAP usage time to normalize AHI in obstructive sleep apnea patients: a simulation study

Kulkas, Antti, Leppanen, Timo, Kon, Sami Nik, Oksenberg, Arie, Duce, Brett, Mervaala, Esa and Toyras, Juha (2018). Required CPAP usage time to normalize AHI in obstructive sleep apnea patients: a simulation study. Physiological Measurement, 39 (11) 115009, 115009. doi: 10.1088/1361-6579/aae7fe

Required CPAP usage time to normalize AHI in obstructive sleep apnea patients: a simulation study

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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