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Abstract #5150

Comparison of DESS and conventional clinical sequences for imaging the lumbosacral plexus

Daehyun Yoon1, Adam Luce Bartret1, Peter Cipriano1, Brian Andrew Hargreaves1, Sandip Biswal1, and Amelie Lutz1

1Stanford University, Stanford, CA, United States

Peripheral nerve imaging with MRI has gained increasing attention for non-invasive detection of nerve diseases. Unfortunately, the current performance of clinical sequences (T2-weighted fast spine echo with fat saturation and other supporting sequences) in spatial resolution, fat-saturation, and nerve-vessel distinction is often insufficient to make a convincing diagnosis. We conducted a radiologic review of lumbosacral plexus images from 3D double-echo in steady state (DESS) in comparison with images from conventional sequences in our current clinical protocol. Our results demonstrate the improved nerve visualization with the DESS sequence with comparable sensitivity to pathology.

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