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Abstract #4525

Artifact Removal in Carotid Imaging based on Motion Measurement using Structured Light

Huijun Chen 1 , Jin Liu 2 , Zechen Zhou 3 , Chun Yuan 2 , Peter Boernert 4 , and Jinnan Wang 5

1 Tsinghua University, Beijing, Beijing, China, 2 University of Washington, Seattle, WA, United States, 3 Tsinghua University, Beijing, China, 4 Philips Research Europe, Hamburg, Germany, 5 Philips Reserach North America, Seattle, WA, United States

Motion induced artifact is a common cause of unsatisfactory image quality in carotid artery imaging: previous study found that motion was the most significant contributor to low image quality. Monitoring and quantifying motion in the neck area is more challenging than other body parts due to the complex non-rigid motion pattern. Structured light based motion detection system has been recently developed for MR. It was selected for neck based motion tracking in this study because of its capability in accurately measuring distance changes.

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