Clinical and Translational Potential of MRI Evaluation in Knee Osteoarthritis
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Magnetic resonance imaging (MRI) has become an increasingly important imaging technique in osteoarthritis (OA) research, and is widely used in the ongoing endeavor to understand the pathogenesis of OA and to develop structure and disease-modifying OA drugs. MRI offers semiquantitative, quantitative and compositional evaluation of knee OA, and enables visualization of tissues that are not seen by radiography, including but not limited to cartilage, meniscus, bone marrow lesions, synovitis, and muscles. It is now recognized that contrast-enhanced MRI enables more accurate evaluation of synovitis than MRI without contrast. Because of its ability to visualize multiple pain-related tissue pathology in three dimensions, MRI is the best modality for imaging of OA.
KeywordsOsteoarthritis Magnetic resonance imaging MRI MRI evaluation Radiography Cartilage Bone marrow lesion Synovitis Meniscus Meniscal root Semiquantitative Quantitative Knee
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Conflict of Interest
Ali Guermazi has served as a consultant for Sanofi Aventis, Merck Serono, and TissueGene and has held stock/stock options in Boston Imaging Core Lab, LLC. C. Kent Kwoh has served on an advisory board for Pfizer, has received grant support from Abbvie, has received payment for development of educational presentations (including service on speakers bureaus) from Dinora and Creative Educational Concepts, and has served on a data safety and monitoring board for Novartis. Daichi Hayashi declares that he has no conflict of interest.
Human and Animal Rights and Informed Consent
This article does not contain any studies with animal subjects performed by any of the authors. With regard to the authors’ research cited in this paper, all procedures were followed in accordance with the ethical standards of the responsible committee on human experimentation and with the Helsinki Declaration of 1975, as revised in 2000 and 2008.
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