女性压力性尿失禁膀胱尿道的MRI形态

Vesicourethral form of MRI in female stress urinary incontinence

目的 :探讨MRI对女性压力性尿失禁 (SUI)的诊断价值。方法 :2 1例有SUI症状患者和 18例正常对照者行MRI扫描 ,比较静态和应力状态下膀胱尿道的活动度及形态改变 ,测量两种状态时膀胱尿道连接点至耻尾线的垂直距离及距离差 (即下移度 ) ,患者同时行尿动力学和其他临床检查并确定临床诊断。结果 :真性压力性尿失禁 (GSUI) 15例中 13例应力状态下膀胱尿道连接点下移至耻尾线以下 ,下移距离 (9.4 4± 1.89)mm ,其中 2例可见后尿道呈漏斗状开放 ;6例非GSUI和 18例正常对照者下移距离分别为 (6 .33± 1.5 7)mm和 (5 .3± 1.36 )mm ,但膀胱尿道连接点均位于耻尾线以上 ,前者与后二者比较P <0 .0 0 1,后二者之间P >0 .0 5。结论 :MRI作为SUI影像诊断方法操作简便 ,影像清晰直观 ,具有非侵入性特点。

Objective:To discuss diagnostic value of MRI in female stress urinary incontinence.Methods:The static and dynamic distance between the pubococcygeal line and urethra-vesical joint were measured both in 21 patients with symptom of SUI and 18 healthy controls on MRI picture and compared.Results:Urethra-vesical joints descented downwards to pubococcygeal line in 13 out of 15 cases of GSUI,but didn't in other patients and all of healthy controls.The distance of descending was(9.44±1.89)mm,(6.33±1.57)mm and(5.3±1.36)mm in group GSUI,Non-GSUI and Control,respectively.There was higher signficant difference between group GSUI and Non-GSUI or Control,and no signficant difference between group Non-GSUI and Control.Conclusion:MRI is a convenient,non-invasive diagnostic device and able to diplay clear picture for SUI.