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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

406 works between 1999 and 2025

221 - 240 of 406 works

2017

Journal Article

Regular chondrocyte spacing is a potential cause for coherent ultrasound backscatter in human articular cartilage

Rohrbach, Daniel, Inkinen, Satu I., Zatloukalová, Jana, Kadow-Romacker, Anke, Joukainen, Antti, Malo, Markus K., Mamou, Jonathan, Töyräs, Juha and Raum, Kay (2017). Regular chondrocyte spacing is a potential cause for coherent ultrasound backscatter in human articular cartilage. Journal of the Acoustical Society of America, 141 (5), 3105-3116. doi: 10.1121/1.4979339

Regular chondrocyte spacing is a potential cause for coherent ultrasound backscatter in human articular cartilage

2017

Journal Article

Amsterdam positional OSA classification: the AASM 2012 recommended hypopnoea criteria increases the number of positional therapy candidates

Duce, Brett, Kulkas, Antti, Langton, Christian, Töyräs, Juha and Hukins, Craig (2017). Amsterdam positional OSA classification: the AASM 2012 recommended hypopnoea criteria increases the number of positional therapy candidates. Sleep and Breathing, 21 (2), 411-417. doi: 10.1007/s11325-016-1432-y

Amsterdam positional OSA classification: the AASM 2012 recommended hypopnoea criteria increases the number of positional therapy candidates

2017

Journal Article

Solute transport of negatively charged contrast agents across articular surface of injured cartilage

Kokkonen, H. T., Chin, H. C., Töyräs, J., Jurvelin, J. S. and Quinn, T. M. (2017). Solute transport of negatively charged contrast agents across articular surface of injured cartilage. Annals of Biomedical Engineering, 45 (4), 973-981. doi: 10.1007/s10439-016-1756-6

Solute transport of negatively charged contrast agents across articular surface of injured cartilage

2017

Journal Article

Vibrational spectroscopy of articular cartilage

Rieppo, Lassi, Töyräs, Juha and Saarakkala, Simo (2017). Vibrational spectroscopy of articular cartilage. Applied Spectroscopy Reviews, 52 (3), 249-266. doi: 10.1080/05704928.2016.1226182

Vibrational spectroscopy of articular cartilage

2017

Journal Article

Infrared microspectroscopic determination of collagen cross-links in articular cartilage

Rieppo, Lassi, Kokkonen, Harri T., Kulmala, Katariina A.M., Kovanen, Vuokko, Lammi, Mikko J., Töyräs, Juha and Saarakkala, Simo (2017). Infrared microspectroscopic determination of collagen cross-links in articular cartilage. Journal of Biomedical Optics, 22 (3) 035007, 035007. doi: 10.1117/1.JBO.22.3.035007

Infrared microspectroscopic determination of collagen cross-links in articular cartilage

2017

Journal Article

Structure-function relationships of human meniscus

Danso, Elvis K., Oinas, Joonas M.T., Saarakkala, Simo, Mikkonen, Santtu, Töyräs, Juha and Korhonen, Rami K. (2017). Structure-function relationships of human meniscus. Journal of the Mechanical Behavior of Biomedical Materials, 67, 51-60. doi: 10.1016/j.jmbbm.2016.12.002

Structure-function relationships of human meniscus

2017

Journal Article

In Vivo contrast-enhanced cone beam CT provides quantitative information on articular cartilage and subchondral bone

Myller, Katariina A. H., Turunen, Mikael J., Honkanen, Juuso T. J., Väänänen, Sami P., Iivarinen, Jarkko T., Salo, Jari, Jurvelin, Jukka S. and Töyräs, Juha (2017). In Vivo contrast-enhanced cone beam CT provides quantitative information on articular cartilage and subchondral bone. Annals of Biomedical Engineering, 45 (3), 811-818. doi: 10.1007/s10439-016-1730-3

In Vivo contrast-enhanced cone beam CT provides quantitative information on articular cartilage and subchondral bone

2017

Journal Article

Porosity predicted from ultrasound backscatter using multivariate analysis can improve accuracy of cortical bone thickness assessment

Eneh, Chibuzor T. M., Afara, Isaac O., Malo, Markus K. H., Jurvelin, Jukka S. and Töyräs, Juha (2017). Porosity predicted from ultrasound backscatter using multivariate analysis can improve accuracy of cortical bone thickness assessment. Journal of the Acoustical Society of America, 141 (1), 575-585. doi: 10.1121/1.4973572

Porosity predicted from ultrasound backscatter using multivariate analysis can improve accuracy of cortical bone thickness assessment

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

Assessment of the suitability of using a forehead EEG electrode set and chin EMG electrodes for sleep staging in polysomnography

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

Quantitative evaluation of the mechanical risks caused by focal cartilage defects in the knee

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

Near infrared spectroscopic mapping of functional properties of equine articular cartilage

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

The AASM 2012 recommended hypopnea criteria increase the incidence of obstructive sleep apnea but not the proportion of positional obstructive sleep apnea

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

Cationic contrast agent diffusion differs between cartilage and meniscus

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

Optimal graft stiffness and pre-strain restore normal joint motion and cartilage responses in ACL reconstructed knee

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

Effect of collagen cross-linking on quantitative MRI parameters of articular cartilage

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

Differences in acoustic impedance of fresh and embedded human trabecular bone samples - scanning acoustic microscopy and numerical evaluation

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

Phased-array ultrasound technology enhances accuracy of dual frequency ultrasound measurements – towards improved ultrasound bone diagnostics

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

Optical coherence tomography enables accurate measurement of equine cartilage thickness for determination of speed of sound

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

Importance of patella, quadriceps forces, and depthwise cartilage structure on knee joint motion and cartilage response during gait

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

In vivo evaluation of the potential of high-frequency ultrasound for arthroscopic examination of the shoulder joint

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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