Abstract

STUDY TO SEE THE EFFECT AND USE OF ENDOSONOGRAPHY OF ANORECTAL FISTULAS, AND IT’ S COMPARISON WITH MRI

V. K. Singh, Rekha Khare, Pratap Shankar*, Dheeraj Singh, Preet Lakhani, Sachin Tutu, Amod Kumar, R. K. Dixit

ABSTRACT

Objective: To determine the accuracy of endoanal ultrasonography (EUS) in identifying fistula anatomy and comparision with MRI. Methods: Endosonographic imaging was perfomed with a Siemens (Erlangen,Germany) Fl 400 ultrasound scanner with an end-fire 7.5-MHz biplane endorectal probe and a B-K Medical (Sandhoften, Denmark ) scanner with an 1850 axial –type side-fire 5.0 – to 10.0 –MHz rotating endoscopic probe. Result: Out of the 60 patients with confirm fistula in ano clinical examination reveal track in 60% (n36) cases while internal opening observed only in 5% (n3). TRUS Shows track in 100% and internal opening in 90% in comparison MRI visualization of book internal opening in 100% and 98% respectively. Conclusion: Endosonography can accurately assess the anal sphincter, peroxide – enhanced 3- dimensional imaging can increase the utility of EUS in detection and characterization of perianal fistulas and planning of optimal therapy. However, MRI can be used complementary modality to EUS, especially for deep pelvis lesions.

Keywords: Endoanal, Ultrasonography, MRI.