Figure 3

Magnetic resonance imaging pelvimetry. (A) Pelvic inlet (distance between the sacral promontory and superior aspect of the pubic symphysis). (B) Pubic tubercle height (distance from the superior to the inferior middle aspect of the pubic symphysis). (C) Intertuberous distance (distance between the lowest points of the ischial tuberosities). (D) Interspinous distance (distance between the tips of the ischial spines). (E) Mesorectal fat area at the level of the tips of the ischial spines (red circle).