MRI for assessment of anal fistula

Insights Imaging. 2010 May;1(2):62-71. doi: 10.1007/s13244-010-0022-y. Epub 2010 May 27.

Abstract

Magnetic resonance imaging (MRI) is the best imaging modality for preoperative assessment of patients with anal fistula. MRI helps to accurately demonstrate disease extension and predict prognosis. This in turn helps make therapy decisions and monitor therapy. The pertinent anatomy, fistula classification and MRI findings will be discussed.