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Abstract #4374

Evaluation of the effect on quantitative ultrashort echo time (UTE) biomarkers with cartilage dehydration and rehydration

Lidi Wan1, Adam Searleman2, Yajun Ma2, Jonathan H Wong3, Guangyu Tang1, Jiang Du2, and Eric Y Chang3
1Radiology, Tenth People's Hospital of Tongji University, Shanghai, China, 2Radiology, University of California, San Diego, San Diego, CA, United States, 3Radiology, VA San Diego Healthcare System, San Diego, CA, United States

Synopsis

Keywords: Cartilage, Quantitative ImagingEx vivo and cadaveric articular cartilage samples often undergo freeze and thaw cycles and sample preparation in air. These procedures will result in cartilage dehydration and degradation, which may affect the results of UTE-biomarkers. This study was aimed to evaluate the effect of cartilage dehydration and rehydration on UTE-biomarkers and to compare the rehydration capability of synovial fluid and normal saline. Cartilage dehydration resulted in significant changes in all evaluated UTE-biomarkers. Rehydrating with normal saline had non-significant effect on UTE-biomarkers while synovial fluid resulted in significant changes for MMF and T2*. Rehydrating with normal saline is better than synovial fluid.

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