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Comparison of ultrasound and optical coherence tomography techniques for evaluation of integrity of spontaneously repaired horse cartilage.
Department of Applied Physics, University of Eastern Finland, Kuopio, Finland; Department of Clinical Neurophysiology, Kuopio University Hospital, Kuopio, Finlandl.
Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong, China.
Department of Applied Physics, University of Eastern Finland, Kuopio, Finland; Department of Diagnostic Radiology, Oulu University Hospital, Oulu , Finland; Department of Medical Technology, Institute of Biomedicine, University of Oulu, Oulu , Finland.
Institute of Biomedicine, Anatomy, University of Eastern Finland, Kuopio , Finland.
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2012 (English)In: Journal of Medical Engineering & Technology, ISSN 0309-1902, E-ISSN 1464-522X, Vol. 36, no 3, 185-192 p., 22439802Article in journal (Refereed) Published
Abstract [en]

The aim of this study was to compare sensitivity of ultrasound and optical coherence tomography (OCT) techniques for the evaluation of the integrity of spontaneously repaired horse cartilage. Articular surfaces of horse intercarpal joints, featuring both intact tissue and spontaneously healed chondral or osteochondral defects, were imaged ex vivo with arthroscopic ultrasound and laboratory OCT devices. Quantitative ultrasound (integrated reflection coefficient (IRC), apparent integrated backscattering coefficient (AIB) and ultrasound roughness index (URI)) and optical parameters (optical reflection coefficient (ORC), optical roughness index (ORI) and optical backscattering (OBS)) were determined and compared with histological integrity and mechanical properties of the tissue. Spontaneously healed tissue could be quantitatively discerned from the intact tissue with ultrasound and OCT techniques. Furthermore, several significant correlations (p < 0.05) were detected between ultrasound and OCT parameters. Superior resolution of OCT provided a more accurate measurement of cartilage surface roughness, while the ultrasound backscattering from the inner structures of the cartilage matched better with the histological findings. Since the techniques were found to be complementary to each other, dual modality imaging techniques could provide a useful tool for the arthroscopic evaluation of the integrity of articular cartilage.

Place, publisher, year, edition, pages
Informa Healthcare, 2012. Vol. 36, no 3, 185-192 p., 22439802
Keyword [en]
Articular cartilage, Cartilage repair, High-frequency ultrasound, Optical coherence tomography, Quantitative characterization
National Category
Medical Image Processing Medical Laboratory and Measurements Technologies Orthopedics
Research subject
Orthopaedics; Physical Biology
Identifiers
URN: urn:nbn:se:umu:diva-104434DOI: 10.3109/03091902.2012.663054PubMedID: 22439802OAI: oai:DiVA.org:umu-104434DiVA: diva2:819652
Available from: 2015-06-11 Created: 2015-06-11 Last updated: 2017-12-04

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Kiviranta, IlkkaLammi, Mikko

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