Tillack Allison A, Joe Bonnie N, Yeh Benjamin M, Jun Stephanie L, Kornak John, Zhao Shoujun, Deng Donna
Department of Radiology, University of Washington, 1959 NE Pacific Street, Box 357115, RR210, Seattle, WA 98195-7115, USA.
Department of Radiology, University of California, 505 Parnassus Avenue, Suite M-372, San Francisco, CA 94143, USA.
Clin Imaging. 2015 Mar-Apr;39(2):285-8. doi: 10.1016/j.clinimag.2014.10.007. Epub 2014 Oct 25.
The objective was to determine if alteration in vaginal shape seen on nonstraining pelvic magnetic resonance (MR) scans is associated with pelvic floor weakness.
Two readers classified the shape of the middle third of the vagina on resting T2-weighted axial images as normal or abnormal for 76 women with and without pelvic floor weakness.
The sensitivity and specificity for diagnosing pelvic floor dysfunction were 84% and 68% for reader A and 41% and 91% for reader B. Interobserver agreement was fair (kappa=0.39).
Architectural distortion of vaginal shape on routine pelvic MR imaging may suggest pelvic floor dysfunction but is not diagnostic.
确定在非用力状态下盆腔磁共振（MR）扫描所见阴道形态改变是否与盆底功能障碍相关。
两名阅片者对76名有或无盆底功能障碍的女性在静息状态下T2加权轴位图像上阴道中三分之一的形态进行分类，分为正常或异常。
阅片者A诊断盆底功能障碍的敏感性和特异性分别为84%和68%，阅片者B分别为41%和91%。观察者间一致性一般（kappa=0.39）。
常规盆腔MR成像上阴道形态的结构扭曲可能提示盆底功能障碍，但不能作为诊断依据。
