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. Author manuscript; available in PMC: 2010 May 26.
Published in final edited form as: Am J Obstet Gynecol. 2008 Feb 1;198(6):651.e1–651.e7. doi: 10.1016/j.ajog.2007.11.032

Figure 5.

Figure 5

Coronal scans of the same subject are depicted. Images are presented ventral (negative numbers) to dorsal (positive numbers) in centimeters relative to the APL . The bladder (B), uterus (Ut), urethra (Ur), vagina (V) are seen from −1.0 to −3.0. The fibers of the pubovisceral muscle (PVM) are seen in −2.0 to −4.5. At −1.0 to −3.0, the lateral portion of the perineal membrane (PM) is seen. At −3.0 the peri-vascular halo of the vagina is visible. At −3.5 the rectovaginal space (RVSp) and iliococcygeus muscle (ICM) are seen. The perineal body (PB) becomes visible at −4.5. At −5.5, the external anal sphincter (EAS) and puborectalis (PR) can also be seen as well as the anal canal (AC). The division of the upper, mid and lower portions of the posterior compartment are shown in panel −3.0. © DeLancey 2007.