Figure 7
From: Preoperative rectal cancer staging with phased-array MR
These pictures show the normal rectal anatomy and the major anatomic structures such as the elevator ani muscle (EAM), the puborectal muscle (PRM), the internal and external anal sphincters, the ischio-rectal fossa (IRF) and the anal canal, easily evaluated on coronal T2 TSEwi (7a) and sagittal T2 TSEwi (7b).