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Abstract #1488

MR vessel wall imaging of intracranial and carotid arteries with a 40-channel coil system at 3 T

Qiaoyan Chen1, Zidong Wei2, Lei Zhang1, Changjun Tie1, Qiang He2, Xiaoliang Zhang3,4, Xin Liu1, Hairong Zheng1, and Ye Li1

1Lauterbur Imaging Research Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China, 2Shanghai United Imaging Healthcare, Shanghai, China, 3Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, CA, United States, 4UCSF/UC Berkeley Joint Graduate Group in Bioengineering, San Francisco, CA, United States

Due to the small cross-sectional size of the vessel wall and the cord, and susceptibility effects, especially in the carotid and the spinal cord, MR vessel wall imaging of intracranial and carotid arteries still remains challenging. In this work, a 40-channel coil system that consists of a 32-channel head coil combined with an 8-channel carotid coil was implemented and characterized in its performance by comparison with a 24-channel head and neck joint coil. As a result, the proposed 40-channel coil system provides improved performance in SNR, parallel imaging capability, and image quality.

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