Fig. 2From: Accuracy of magnetic resonance imaging in defining dentate line in anal fistulaThe location of the anal verge on oblique coronal T2WI. A oblique coronal FSE T2WI, compared with the signal of surrounding muscles, subcutaneous part of external anal sphincter is isointense (shown by black arrows); B oblique coronal enhanced T1WI, subcutaneous part of external anal sphincter is significantly enhanced uniformly, intersphincteric groove shown by asteriskBack to article page