Evaluation of chondral repair using quantitative MRI |
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| Authors: | Miika T Nieminen PhD Mikko J Nissi PhD Lauri Mattila MD Ilkka Kiviranta MD PhD |
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| Institution: | 1. Department of Diagnostic Radiology, Oulu University Hospital, Oulu, Finland;2. Department of Medical Technology, University of Oulu, Oulu, Finland;3. Department of Applied Physics, University of Eastern Finland, Kuopio, Finland;4. Department of Orthopaedics and Traumatology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland;5. Department of Orthopaedics and Traumatology, Jyv?skyl? Central Hospital, Jyv?skyl?, Finland |
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| Abstract: | Various quantitative magnetic resonance imaging (qMRI) biomarkers, including but not limited to parametric MRI mapping, semiquantitative evaluation, and morphological assessment, have been successfully applied to assess cartilage repair in both animal and human studies. Through the interaction between interstitial water and constituent macromolecules the compositional and structural properties of cartilage can be evaluated. In this review a comprehensive view of a variety of quantitative techniques, particularly those involving parametric mapping, and their relationship to the properties of cartilage repair is presented. Some techniques, such as T2 relaxation time mapping and delayed gadolinium‐enhanced MRI of cartilage (dGEMRIC), are well established, while the full potential of more recently introduced techniques remain to be demonstrated. A combination of several MRI techniques is necessary for a comprehensive characterization of chondral repair. J. Magn. Reson. Imaging 2012; 36:1287–1299. © 2012 Wiley Periodicals, Inc. |
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| Keywords: | magnetic resonance imaging articular cartilage repair glycosaminoglycans proteoglycans collagen |
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