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Abstract #1352

A 1x1x1mm isotropic resolution CUBE-FLEX for imaging piriformis syndrome

Daehyun Yoon1, Brian Hargreaves1, Christopher Beaulieu1, and Amelie Lutz1

1Radiology, Stanford University, Stanford, CA, United States

Piriformis syndrome is one of the more common causes for sciatica-type symptoms, defined as impingement of the sciatic nerve by the piriformis muscle. MRI can be very useful in identifying the causative anatomic configuration for presurgical planning, but the conventional 2D sequences can be very challenging for the evaluation of the complex oblique anatomy of the piriformis muscle and sciatic nerve. We present a 5-minute isotropic resolution (1mm3) 3D fast-spin-echo sequence with fat-water separation, allowing arbitrary reformats to specify the causative anatomy as well as T2-weighted contrast to detect abnormal signal of the nerve in the context of associated neuropathy.

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