Ultrashort Echo Time Magnetization Transfer Imaging of Meniscus After a Marathon

In this study, a 3D UTE-MT preparation will be used to detecting changes in the meniscus of amateur marathon runners before and after a marathon. In this prospective cohort study, 23 amateur marathon runners were enrolled. There were three MRI scans (pre-race, 2 days post-race, and 4 weeks post-race) using the UTE-MT and UTE-T2* sequences. UTE-MTR values decreased 2 days post-race and increased after 4 weeks of rest. Conversely, the UTE-T2* values increased 2 days post-race and increased after 4 weeks of rest. UTE-MTR is a promising biomarker for the detection of changes in the meniscus after a marathon.