摘要
目的:探讨MRI诊断坐骨股骨撞击综合征(IFI)的价值。方法:将临床及MRI共同诊断坐骨股骨撞击综合征的患者作为IFI组,并分析其MRI图像特点。另选取34名无临床症状患者作为对照。测量两组坐骨股骨间隙(IFS)及股方肌间隙(QFS)。利用独立样本t检验分析两组IFS及QFS的差异,并用ROC确定IFS及QFS诊断界值。采用单因素方差分析比较不同年龄组的IFI患者的IFS和QFS的差异。结果:IFI组共计50名患者69例髋,其中50例表现为股方肌卡压伴水肿,9例表现为股方肌卡压伴部分撕裂,8例表现为单纯股方肌卡压和2例表现为单纯股方肌水肿。IFI患者的IFS和QFS分别为15.04±4.20mm和7.33±3.20mm,均明显小于对照组的21.76±4.92mm(t=-12.198,P<0.0001)及11.91±4.52mm(t=-12.058,P<0.0001)。IFS及QFS诊断界值分别是17mm和9mm,相对应的敏感性、特异性、准确度及ROC曲线下面积分别为:80.9%、70.2%、85.4%及0.928;97.1%,73.9%,84.7%及0.932。不同年龄组IFI患者的IFS及QFS间无显著性差异(P>0.05)。结论:股方肌出现形态和(或)信号异常为MRI诊断IFI可靠征象,参考IFS及QFS的诊断界值对IFI诊断具有重要价值。
Purpose： To investigate the value of MR] in the diagnosis of ischiofemoral impingemen （IFI） syndrome. Methods： The patients with IFI were diagnosed by clinical and MR exams, another 34 asymptomatic patients were taken as controls. Their ischiofemoral space （IFS） and quadratus femoris space （QFS） were measured respectively. The differences of QFS and IFS in the two groups were analyzed by independent-samples t test, and the optimal thresholds of IFS and QFS in patients with IFI were analyzed by ROC analysis. The differences of IFS and QFS in IFI patients of different age groups were compared by one-way analysis of variance. Results： Only 50 patients （69 hips） of all patients were diagnosed as IFI by clinic exam and MR] results, among which 51 cases showed quadratus femoris compression with edema, 9 cases showed quadratus femoris muscle compression with partial tear, 8 cases showed simple muscle compression, and 2 cases showed simple muscle edema. IFS and QFS in patients with IFI were 15.04~4.20mm and 7.33~3.20mm and that in control group were 21.76＋4.92 mm and 11.91-4-4.52mm, respectively, the differences between two groups were with statistical significance （t - 12.198,12.058, P〈0.0001 for both）. The optimal thresholds of IFS and QFS were 17mm and 9mm, respectively. The sensitivity, specificity, accuracy and area under ROC curve were 80.9%, 70.2%, 85.4% and 0.928; 97.1%, 73.9%, 84.7% and 0.932, respectively. There was no statistical significant differences in IFS and QFS of IFI patients among different age groups （P 〉0.05）. Conclusion： The morphological and （or） signal abnormality of the quadratus femoris on MRI is a reliable sign in diagnosis of IFI. The optimal thresholds of IFS and QFS have important value to diagnose IFI.
出处
《中国医学计算机成像杂志》
CSCD
北大核心
2017年第1期67-72,共6页
Chinese Computed Medical Imaging
基金
上海交通大学"医工交叉研究基金"No.YG2015MS21~~
关键词
坐骨股骨撞击
坐骨股骨间隙
股方肌间隙
磁共振成像
Ischiofemoral impingement syndrome
Ischiofemoral space
Quadratus femoris space
MRI
