反转回波脂肪饱和序列技术在膝关节骨挫伤中的应用

目的评价反转回波脂肪饱和序列（STIR）成像在膝关节骨挫伤中的临床应用价值。方法对63例膝关节外伤患者行自旋回波（SE）序列和STIR序列扫描，比较STIR序列及T2像在显示骨挫伤的差异。结果65个膝关节检查中共发现76处病灶，STIR序列全部清晰显示，而SE序列T1加权像显示59处病灶，占79％；T2加权像显示67处病灶，占88％；T2像有9处病灶未能显示，与周围组织的对比不如STIR像清晰。结论STIR像对膝关节骨挫伤的显示优于SE序列T2加权像。

The application of STIR in knee bone joint contusion

Objective To evaluate the application of STIR in knee joint bone contusion. Methods 63 cases with varied knee joint trauma were studies with SE sequence and STIR sequence. The difference between STIR sequence and T2-weighted sequence in the detection of bone contusion were analyzed and compared. Results There were 76 lesions showed in the check of knee joint. The whole lesions were showed clearly in STIR images. 59 lesions were showed on T2-weighted images,which is 79% of 76 lesions. 67 lesions were showed on T2-weighted images, which is 88% ;9 lesions were not showed on T2-weighted images. The contrast with neighbor tissue was not better than STIR sequence. Conclusion STIR is better and stronger than T2-weighted in the detection of knee bone contusion.