highly significantP<0.05
Highly significant decreases in cartilage thickness as well as in cartilage volume were observed as the OA severity increased (P<0.05).
Highly significant decreases in cartilage thickness as well as in cartilage volume were observed as the OA severity increased (P<0.05).
Few significant differences were found in the mean and SD of susceptibility value, with an increasing trend respectively [overall average QSM mean (ppm): −0.03±0.01, −0.03±0.01, −0.04±0.02 for normal controls, mild-OAs, and severe-OAs; overall average QSM SD (ppm): 0.09±0.01, 0.09±0.01, 0.11±0.02 for normal controls, mild-OAs, and severe-OAs].