Practical MR imaging of female pelvic floor weakness
Practical MR imaging of female pelvic floor weakness
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DOI：
10.1148/radiographics.22.2.g02mr25295
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发表时间：
2002-03-01
期刊：
影响因子：
5.5
通讯作者：
Fielding, JR
中科院分区：
文献类型：
--
作者：
Fielding, JR
盆底肌无力在中老年经产女性中较为常见，常与压力性尿失禁、子宫脱垂、便秘和排便不尽相关。大多数有尿失禁且盆底肌无力较轻的患者可根据体格检查和基本的尿动力学检查结果进行治疗。然而，对于有症状、多腔室受累且计划进行复杂修复或既往已进行过修复的女性，磁共振（MR）成像可作为一种有用的术前规划工具。MR成像评估在患者仰卧位、不使用造影剂的情况下于15分钟内完成。使用多线圈阵列和快速半傅里叶T2加权成像序列获取患者静息及盆底用力时的矢状位图像，随后获取轴位图像。在这些图像上，放射科医生识别耻骨尾骨线（代表盆底水平）、H线和M线（有助于确认盆底松弛）以及肛提肌板与耻骨尾骨线的夹角（有助于识别小肠脱垂）。在合适的患者中，MR图像可相对容易地对盆底进行三维概念化，并可显著影响治疗方案的制定。（美国）放射学会，2002年
Pelvic floor weakness is common in middle-aged and elderly parous women and is often associated with stress incontinence, uterine prolapse, constipation, and incomplete defecation. Most patients with incontinence and minimal pelvic floor weakness can be treated based on physical examination and basic urodynamic findings. However, in women with symptoms, of multicompartment involvement for whom a complex repair is planned or who have undergone previous repairs, magnetic resonance (MR) imaging can be a useful preoperative planning tool. The MR imaging evaluation is performed with the patient in the supine position, without contrast agents, and within 15 minutes. A multicoil array and a rapid half-Fourier T2-weighted imaging sequence are used to obtain sagittal images while the patient is at rest and during pelvic strain, followed by axial images. On these images, the radiologist identifies the pubococcygeal line (which represents the level of the pelvic floor), the H and M lines (which are helpful for confirming pelvic floor laxity), and the angle of the levator plate with the pubococcygeal line (which is helpful for identifying small bowel prolapse). In the appropriate patient., MR images provide relatively easy three-dimensional conceptualization of the pelvic floor and can significantly influence treatment planning. (C)RSNA, 2002.