64层螺旋CT对臀中肌综合征的诊断价值

Diagnosis Value of 64-MSCT in Gluteus Medius Muscle Syndrome

目的探讨64层螺旋CT对臀中肌综合征的诊断价值。方法对8例经临床和MRI证实的臀中肌综合征患者的CT资料进行观察,并通过选取多个感兴趣区分别测量8例患者患侧臀中肌与对应健侧臀中肌CT值,采用独立样本t检验比较差异有无统计学意义。结果 8例中7例于患侧臀中肌止点(即股骨大转子)附近出现点、条状或结节状钙化;8例患者患侧臀中肌CT值(39.1 HU)低于健侧臀中肌CT值(51.2 HU)(t=6.910,P<0.05)。结论臀中肌综合征常合并患侧股骨大转子周围钙化影,通过测量臀中肌CT值可准确判断臀中肌综合征。

Objective To investigate the diagnosis value of 64-MSCT in gluteus medius muscle syndrome. Methods CT images of 8 patients with gluteus medius muscle syndrome diagnosed by clinical and MR were analyzed. CT attenuation of interesting regions selected in both the sick lateral gluteus medius muscle and the corresponding contralateral gluteus medius muscle were measured and compared. Results Among the eight patients, seven patients （87.5%） were found calcification around the end point of sick lateral gluteus medius muscle（ greater trochanter of femur）. The CT attenuation of the sick lateral gluteus medius muscle （39.1 HU） were lower than that of the contralateral gluteus medius muscle （51.2 HU） （t = 6. 910,P 〈 0.05）. Conclusion Gluteus medius muscle syndrome is often associated with calcification around the sick lateral greater trochanter of femur. By measuring the CT attenuation of the gluteus medius muscle, we can diagnose the gluteus medius muscle syndrome effectively.