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 Zhang^3,4, 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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