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Abstract #0555

Motion-robust 3D Black-blood Carotid Wall Imaging Using Flow-sensitive Dephasing Preparation and Stack-of-Stars Trajectory

Xiaoming Bi 1 , Yutaka Natsuaki 1 , Zhaoyang Fan 2 , Peter Speier 3 , Debiao Li 2 , and Gerhard Laub 1

1 Siemens Healthcare, Los Angeles, CA, United States, 2 Cedars-Sinai Medical Center, Los Angeles, CA, United States, 3 Siemens Healthcare, Erlangen, Germany

High-resolution, volumetric carotid vessel wall imaging is a promising method for the rapid assessment of plaque burden. Such an imaging procedure, however, is frequently challenged by complex motions in the carotids, including pulsation of carotid arteries, swallowing, breathing, and bulk motion of patient. The goal of this work is to develop a motion-robust, black-blood 3D carotid wall imaging technique using a stack-of-stars sampling scheme. The efficacy of using such a method is compared to the conventional carotid wall imaging with Cartesian sampling. Volunteer studies show improved image quality and vessel wall delineation using the proposed flow-sensitive dephasing prepared stack-of-stars sequence.

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