Brandon Catherine J, Lewicky-Gaupp Christina, Larson Kindra A, Delancey John O L
Pelvic Floor Research Group, University of Michigan, Ann Arbor, MI, USA.
Am J Obstet Gynecol. 2009 May;200(5):583.e1-6. doi: 10.1016/j.ajog.2009.03.004.
Recent cadaver research demonstrates the perineal membrane's ventral and dorsal portions and close relationship to the levator ani muscle. This study seeks to show these relationships in women by magnetic resonance (MR) images.
The subjects were 20 asymptomatic nulliparous women with normal pelvic examinations. MR images were acquired in multiple planes. Anatomical relationships from cadaver studies were examined in these planes.
In the coronal plane the ventral perineal membrane forms an interconnected complex with the compressor urethrae, vestibular bulb, and levator ani. The dorsal part connects the levator ani and vaginal side wall via a distinct band to the ischiopubic ramus. In the sagittal plane the parallel position of perineal membrane and levator ani are seen.
The perineal membrane's anatomical features can be seen in women with MR. The close relationship between the perineal membrane and levator ani is evident.
近期的尸体研究证实了会阴膜的腹侧和背侧部分及其与肛提肌的紧密关系。本研究旨在通过磁共振（MR）图像展示女性体内的这些关系。
研究对象为20名骨盆检查正常的无症状未生育女性。在多个平面采集MR图像。在这些平面中检查尸体研究中的解剖关系。
在冠状平面上，会阴膜腹侧与尿道压迫肌、前庭球和肛提肌形成一个相互连接的复合体。背侧部分通过一条明显的带连接肛提肌和阴道侧壁至耻骨支。在矢状平面上，可以看到会阴膜和肛提肌的平行位置。
MR可显示女性会阴膜的解剖特征。会阴膜与肛提肌之间的紧密关系明显。
