Jin Liu1, Huijun Chen2, Jinnan Wang1, Niranjan Balu1, Haining Liu1, and Chun Yuan1
1University of Washington, Seattle, WA, United States, 2Tsinghua University, Beijing, China, People's Republic of
Carotid artery wall MRI is often affected by complex neck
motion. We aimed to separate different motion components and correct them for
better carotid artery wall delineation using structured light system. A healthy
volunteer was scanned for 2D carotid MRI. It was demonstrated that voluntary
abrupt motion, unconscious bulk motion and involuntary respiration can all be
detected effectively. Both abrupt motion and bulk neck shift can be corrected
for better vessel wall delineation, but the duration of abrupt motion can
affect motion correction effectiveness. Bulk neck shift distance optimization by
maximizing sharpness can future reduce motion artifact.
