Abstract #2126
Faster MRI imaging of perianal fistulas through a limited sequence protocol based on high-resolution free-breathing post-contrast imaging, with comparison to standard care
Andreas M. Loening 1 , Pejman Ghanouni 1 , Joseph Y. Cheng 2 , Marcus T. Alley 1 , and Shreyas S. Vasanawala 1
1
Dept. of Radiology, Stanford University
School of Medicine, Stanford, CA, United States,
2
Electrical
Engineering, Stanford University, Stanford, CA, United
States
Standard MRI imaging of perianal fistulas utilizes
multiple planes of T2 weighted sequences in addition to
pre and post-contrast imaging. To decrease the length of
time these studies require, we demonstrated that a fast
protocol utilizing a single plane of T2 in combination
with a high-resolution free-breathing post-contrast 3D
SPGR sequence (with appropriate reformats derived during
post-processing) was equivalent to a conventional
protocol in the evaluation of perianal fistulas. This
greatly reduces total scan time from 30-40 minutes to
less than 15, and may in fact improve diagnostic
accuracy.
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