Fig. 8.

Time-signal intensity curve of relative signal intensity of intramuscular hematoma on each pulse sequence.

A. Central signal intensity is significantly increased on T1-weighted image (p < 0.05), whereas peripheral signal intensity was variable (p > 0.05). B. On T2-weighted image, hematomas were of variable signal intensity in central portion, with peripherally dark signal rim (p < 0.05). C. Signal intensities of hematomas on gradient echo imaging were similar to those on T2-weighted image. Gec = central relative signal intensity on GRE image, Gep = peripheral relative signal intensity on GRE image, T1WIc = central relative signal intensity on T1WI, T1WIp = peripheral relative signal intensity on T1WI, T2WIc = central relative signal intensity on T2WI, T2WIp = peripheral relative signal intensity on T2WI