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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

181 - 200 of 398 works

2018

Journal Article

Bayesian network model to evaluate the effectiveness of continuous positive airway pressure treatment of sleep apnea

Ryynänen, Olli-Pekka, Leppänen, Timo, Kekolahti, Pekka, Mervaala, Esa and Töyräs, Juha (2018). Bayesian network model to evaluate the effectiveness of continuous positive airway pressure treatment of sleep apnea. Healthcare Informatics Research, 24 (4), 346-358. doi: 10.4258/hir.2018.24.4.346

Bayesian network model to evaluate the effectiveness of continuous positive airway pressure treatment of sleep apnea

2018

Journal Article

Multi-scale imaging techniques to investigate solute transport across articular cartilage

Pouran, Behdad, Arbabi, Vahid, Bajpayee, Ambika G., van Tiel, Jasper, Töyräs, Juha, Jurvelin, Jukka S., Malda, Jos, Zadpoor, Amir A. and Weinans, Harrie (2018). Multi-scale imaging techniques to investigate solute transport across articular cartilage. Journal of Biomechanics, 78, 10-20. doi: 10.1016/j.jbiomech.2018.06.012

Multi-scale imaging techniques to investigate solute transport across articular cartilage

2018

Journal Article

Arthroscopic near infrared spectroscopy enables simultaneous quantitative evaluation of articular cartilage and subchondral bone in vivo

Sarin, Jaakko K., te Moller, Nikae C. R., Mancini, Irina A. D., Brommer, Harold, Visser, Jetze, Malda, Jos, van Weeren, P. René, Afara, Isaac O. and Töyräs, Juha (2018). Arthroscopic near infrared spectroscopy enables simultaneous quantitative evaluation of articular cartilage and subchondral bone in vivo. Scientific Reports, 8 (1) 13409, 13409. doi: 10.1038/s41598-018-31670-5

Arthroscopic near infrared spectroscopy enables simultaneous quantitative evaluation of articular cartilage and subchondral bone in vivo

2018

Journal Article

Home polysomnography reveals a first-night effect in patients with low sleep bruxism activity

Miettinen, Tomi, Myllymaa, Katja, Hukkanen, Taina, Töyräs, Juha, Sipilä, Kirsi and Myllymaa, Sami (2018). Home polysomnography reveals a first-night effect in patients with low sleep bruxism activity. Journal of Clinical Sleep Medicine, 14 (8), 1377-1386. doi: 10.5664/jcsm.7278

Home polysomnography reveals a first-night effect in patients with low sleep bruxism activity

2018

Journal Article

Characterizing human subchondral bone properties using near-infrared (NIR) spectroscopy

Afara, Isaac O., Florea, Cristina, Olumegbon, Ismail A., Eneh, Chibuzor T., Malo, Markus K. H., Korhonen, Rami K. and Töyräs, Juha (2018). Characterizing human subchondral bone properties using near-infrared (NIR) spectroscopy. Scientific Reports, 8 (1) 9733, 9733. doi: 10.1038/s41598-018-27786-3

Characterizing human subchondral bone properties using near-infrared (NIR) spectroscopy

2018

Journal Article

Infrared thermography reveals effect of working posture on skin temperature in office workers

Lasanen, Roope, Malo, Markus K.H., Airaksinen, Olavi, Karhu, Jari, Töyräs, Juha and Julkunen, Petro (2018). Infrared thermography reveals effect of working posture on skin temperature in office workers. International Journal of Occupational Safety and Ergonomics, 24 (3), 457-463. doi: 10.1080/10803548.2017.1336299

Infrared thermography reveals effect of working posture on skin temperature in office workers

2018

Journal Article

Success rate and technical quality of home polysomnography with self-applicable electrode set in subjects with possible sleep bruxism

Miettinen, Tomi, Myllymaa, Katja, Westeren-Punnonen, Susanna, Ahlberg, Jari, Hukkanen, Taina, Toyras, Juha, Lappalainen, Reijo, Mervaala, Esa, Sipila, Kirsi and Myllymaa, Sami (2018). Success rate and technical quality of home polysomnography with self-applicable electrode set in subjects with possible sleep bruxism. IEEE Journal of Biomedical and Health Informatics, 22 (4), 1124-1132. doi: 10.1109/JBHI.2017.2741522

Success rate and technical quality of home polysomnography with self-applicable electrode set in subjects with possible sleep bruxism

2018

Journal Article

Quantitative dual contrast CT technique for evaluation of articular cartilage properties

Bhattarai, Abhisek, Honkanen, Juuso T. J., Myller, Katariina A. H., Prakash, Mithilesh, Korhonen, Miitu, Saukko, Annina E. A., Virén, Tuomas, Joukainen, Antti, Patwa, Amit N., Kröger, Heikki, Grinstaff, Mark W., Jurvelin, Jukka S. and Töyräs, Juha (2018). Quantitative dual contrast CT technique for evaluation of articular cartilage properties. Annals of Biomedical Engineering, 46 (7), 1038-1046. doi: 10.1007/s10439-018-2013-y

Quantitative dual contrast CT technique for evaluation of articular cartilage properties

2018

Journal Article

The prevalence of REM-related obstructive sleep apnoea is reduced by the AASM 2012 hypopnoea criteria

Duce, Brett, Kulkas, Antti, Langton, Christian, Töyräs, Juha and Hukins, Craig (2018). The prevalence of REM-related obstructive sleep apnoea is reduced by the AASM 2012 hypopnoea criteria. Sleep and Breathing, 22 (1), 57-64. doi: 10.1007/s11325-017-1526-1

The prevalence of REM-related obstructive sleep apnoea is reduced by the AASM 2012 hypopnoea criteria

2018

Journal Article

Screen-printed ambulatory electrode set enables accurate diagnostics of sleep bruxism

Miettinen, Tomi, Myllymaa, Katja, Muraja-Murro, Anu, Westeren-Punnonen, Susanna, Hukkanen, Taina, Töyräs, Juha, Lappalainen, Reijo, Mervaala, Esa, Sipilä, Kirsi and Myllymaa, Sami (2018). Screen-printed ambulatory electrode set enables accurate diagnostics of sleep bruxism. Journal of Sleep Research, 27 (1), 103-112. doi: 10.1111/jsr.12536

Screen-printed ambulatory electrode set enables accurate diagnostics of sleep bruxism

2018

Conference Publication

Deep learning classification of cartilage integrity using near infrared spectroscopy

Afara, Isaac O., Sarin, Jaakko K., Ojanen, Simo, Finnila, Mikko, Herzog, Walter, Saarakkala, Simo, Korhonen, Rami K. and To¨yräs, Juha (2018). Deep learning classification of cartilage integrity using near infrared spectroscopy. Clinical and Translational Biophotonics, TRANSLATIONAL 2018, Hollywood, FL United States, 3-6 April 2018. Washington, DC United States: The Optical Society. doi: 10.1364/TRANSLATIONAL.2018.JTu3A.27

Deep learning classification of cartilage integrity using near infrared spectroscopy

2018

Conference Publication

Spectroscopic evaluation of post-traumatic osteoarthritis in Shetland ponies

Sarin, Jaakko K., te Moller, Nikae, Brommer, Harold, van Weeren, Rene´, Mancini, Irina, Malda, Jos, Afara, Isaac O. and Töyräs, Juha (2018). Spectroscopic evaluation of post-traumatic osteoarthritis in Shetland ponies. Optical Tomography and Spectroscopy (OTS 2018), Hollywood, FL, United States, 3-6 April 2018. Washington, D.C.: OSA - The Optical Society. doi: 10.1364/OTS.2018.OTu4D.5

Spectroscopic evaluation of post-traumatic osteoarthritis in Shetland ponies

2018

Conference Publication

Estimating mechanical properties of bovine knee ligaments and tendons with near infrared spectroscopy

Torniainen, Jari E., Ristaniemi, Aapo, Stenroth, Lauri and To¨yräs, Juha (2018). Estimating mechanical properties of bovine knee ligaments and tendons with near infrared spectroscopy. Clinical and Translational Biophotonics, TRANSLATIONAL 2018, Hollywood, FL United States, 3-6 April 2018. Washington, DC United States: The Optical Society. doi: 10.1364/TRANSLATIONAL.2018.JW3A.29

Estimating mechanical properties of bovine knee ligaments and tendons with near infrared spectroscopy

2018

Conference Publication

Near-infrared spectroscopy based arthroscopic evaluation of human knee joint cartilage, through automated selection of an anatomically specific regression model

Prakash, Mithilesh, Joukainen, Antti, Sarin, Jaakko, Rieppo, Lassi, Afara, Isaac and Töyräs, Juha (2018). Near-infrared spectroscopy based arthroscopic evaluation of human knee joint cartilage, through automated selection of an anatomically specific regression model. Optical Tomography and Spectroscopy (OTS 2018), Hollywood, FL, United States, 3-6 April 2018. Washington, D.C.: OSA - The Optical Society. doi: 10.1364/OTS.2018.OF4D.3

Near-infrared spectroscopy based arthroscopic evaluation of human knee joint cartilage, through automated selection of an anatomically specific regression model

2018

Conference Publication

Near-infrared spectroscopy: A potential tool for mapping meniscus properties

Ala-Myllymäki, Juho, To¨yräs, Juha and Afara, Isaac O. (2018). Near-infrared spectroscopy: A potential tool for mapping meniscus properties. Clinical and Translational Biophotonics, TRANSLATIONAL 2018, Hollywood, FL United States, 3-6 April 2018. Washington, DC United States: The Optical Society. doi: 10.1364/TRANSLATIONAL.2018.JW3A.38

Near-infrared spectroscopy: A potential tool for mapping meniscus properties

2018

Conference Publication

Simulation of required CPAP usage to normalize AHI in obstructive sleep apnea patients

Kulkas, Antti, Nikkonen, Sami, Töyräs, Juha, Mervaala, Esa and Leppänen, Timo (2018). Simulation of required CPAP usage to normalize AHI in obstructive sleep apnea patients. World Congress on Medical Physics and Biomedical Engineering (2018), Prague, Czech Republic, 3-8 June 8 2018. New York, NY, United States: Springer. doi: 10.1007/978-981-10-9038-7_23

Simulation of required CPAP usage to normalize AHI in obstructive sleep apnea patients

2017

Journal Article

Optical spectroscopic characterization of human meniscus biomechanical properties

Ala-Myllymäki, Juho, Danso, Elvis K., Honkanen, Juuso T. J., Korhonen, Rami K., Toÿräs, Juha and Afara, Isaac O. (2017). Optical spectroscopic characterization of human meniscus biomechanical properties. Journal of Biomedical Optics, 22 (12) 125008, 1. doi: 10.1117/1.JBO.22.12.125008

Optical spectroscopic characterization of human meniscus biomechanical properties

2017

Journal Article

Tissue viscoelasticity is related to tissue composition but may not fully predict the apparent-level viscoelasticity in human trabecular bone – an experimental and finite element study

Ojanen, X., Tanska, P., Malo, M. K. H., Isaksson, H., Väänänen, S. P., Koistinen, A. P., Grassi, L., Magnusson, S. P., Ribel-Madsen, S. M., Korhonen, R. K., Jurvelin, J. S. and Töyräs, J. (2017). Tissue viscoelasticity is related to tissue composition but may not fully predict the apparent-level viscoelasticity in human trabecular bone – an experimental and finite element study. Journal of Biomechanics, 65, 96-105. doi: 10.1016/j.jbiomech.2017.10.002

Tissue viscoelasticity is related to tissue composition but may not fully predict the apparent-level viscoelasticity in human trabecular bone – an experimental and finite element study

2017

Journal Article

Severity of desaturation events differs between hypopnea and obstructive apnea events and is modulated by their duration in obstructive sleep apnea

Kulkas, Antti, Duce, Brett, Leppänen, Timo, Hukins, Craig and Töyräs, Juha (2017). Severity of desaturation events differs between hypopnea and obstructive apnea events and is modulated by their duration in obstructive sleep apnea. Sleep and Breathing, 21 (4), 829-835. doi: 10.1007/s11325-017-1513-6

Severity of desaturation events differs between hypopnea and obstructive apnea events and is modulated by their duration in obstructive sleep apnea

2017

Journal Article

Dual contrast CT method enables diagnostics of cartilage injuries and degeneration using a single CT image

Saukko, Annina E. A., Honkanen, Juuso T. J., Xu, Wujun, Väänänen, Sami P., Jurvelin, Jukka S., Lehto, Vesa-Pekka and Töyräs, Juha (2017). Dual contrast CT method enables diagnostics of cartilage injuries and degeneration using a single CT image. Annals of Biomedical Engineering, 45 (12), 2857-2866. doi: 10.1007/s10439-017-1916-3

Dual contrast CT method enables diagnostics of cartilage injuries and degeneration using a single CT image

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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