Bone scintigraphy findings | MRI findings | |
---|---|---|
Low-grade stress fracture | Irregular uptake and/or a poorly defined area of increased activity, compared with the contralateral side | Bone marrow edema in STIR images, possibly in T2-weighted images |
High-grade stress fracture | Sharply marginated area of increased activity, compared to the other side, usually focal or fusiform in shape | Bone marrow edema in T1- and T2-weighted image with or without a fracture line |