动态MRI在评估女性压力性尿失禁患者膀胱尿道解剖及功能学中的意义

目的通过盆底动态MRI结合尿动力学检查评估女性压力性尿失禁(stress urinary incontinence,SUI)患者膀胱尿道解剖学异常与功能学改变的相关性。方法回顾性分析本院2011年2月至2013年11月收治的60例女性压力性尿失禁(SUI)患者的临床资料,盆底动态MRI正中矢状面上测量H线长度、M线长度、尿道前倾角以及膀胱、子宫、肛直肠连接部越过耻尾线(pubococcygeal line,PCL)的距离,记录尿动力学参数,Pearson's相关性分析统计分别统计H线、M线长度与尿道前倾角的相关性,H线、M线长度与膀胱颈、子宫、肛直肠连接部越过耻尾线(PCL)的距离的相关性,H线、M线长度与尿动力学参数的相关性。结果 H线、M线长度与尿道前倾角呈正相关,H线、M线长度分别与膀胱颈、子宫、肛直肠连接部越过耻尾线(PCL)的距离呈正相关,H线、M线长度分别与功能性尿道长度、最大尿道闭合压、腹压漏尿点压(VLPP)、逼尿肌开启压呈负相关。结论盆底动态MRI结合尿动力学检查能够对女性压力性尿失禁(SUI)患者膀胱尿道的形态及功能学改变进行较全面的评估。

Dynamic MRI for assessment of the anatomical and functional significance of the bladder and urethra in female stress urinary incontinence

Astract：Objective To assess the anatomical and functional significance of the bladder and urethra in female SUI by dynamic MRI and urodynamic. Methods The clinical data were retrospectively analysed on 60 cases of female stress urinary incontinence from Feb 2011 to Nov 2013. All the women received pelvic floor dynamic MRI and Urodynamic study. Measured the urethral angle,the distance of the H line, M line and the descent of the bladder,cervical,anorectal junction from the PCL in the mid-sagittal dynamic MR image of the pelvic. Pearson＇s correlation coefficient was used to examine the association among the distance of the H line,M line and the urethral angle,the descent of the bladder,cervical,anorectal junction from the PCL and the Urodynamic data. Results The distance of the H line,M line were significantly and positively associated with urethral angle and the descent of the bladder,cervical,anorectal junction from the PCL. The distance of the H line,M line were significantly and negatively associated with functional profile length, maximum urethral closure pressure,VLPP and detrusor opening pressure. Conclusion Pelvic floor dynamic MRI combined with Urodynamic study is useful for assessing the anatomical and func-tional significance of the bladder and urethra in female SUI.