Fig. 3
From: The pathomechanism of bone marrow edema in the femoral head necrosis with pericollapse stage

Analysis of CT low-density area between BME and control groups. (A) CT and MRI imaging of typical case. Green circles represented the area of the femoral head, while red regions indicated the area of low-density shadows on the CT scan. (B) Quantification of CT low-density area ratio. n = 25 for each group, ***p < 0.001.