Quantitative assessment of bone marrow edema and the overlying cartilage in OA and ACL injuries using MR imaging and spectroscopic imaging at 3T
Li X, Ma C, Lozano J, Bauer J, Link T, Majumdar S
University of California at San Francisco
Bone marrow edema (BME) are presented commonly in knee osteoarthritis (OA) and anterior cruciate ligament (ACL) injuries, however, little is known about the natural history and significance of these lesions. This study aimed to assess BME using MR imaging and spectroscopic imaging and to evaluate the BME-overlying cartilage using T1rho quantification at 3T. Ten patients (4 OA and 6 ACL) were studied. T1rho values were significantly elevated in BME-overlying cartilage compared with surrounding cartilage (51.810.8ms vs. 43.08.3 ms, P=0.032). Quantitative MRI can allow us to critically evaluate the success of medical and surgical treatments of cartilage and bone injuries.