A 72-channel coil system for MR vessel wall imaging of intracranial and carotid arteries at 3 T
Yingchao Tan1,2,3, Qiaoyan Chen1,2, Qian Zou3, Yanling Chen3, Junyu Chen3, Xin Liu1,2, Hairong Zheng1,2, and Ye Li1,2
1Paul C. Lauterbur Research Center for Biomedical Imaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China, 2Key Laboratory for Magnetic Resonance and Multimodality Imaging of Guangdong Province, Shenzhen, China, 3Shanghai United Imaging Healthcare, Shanghai, China
MR vessel wall imaging of intracranial and carotid arteries is still challenging because of the small cross-sectional size of the vessel wall and the cord, and susceptibility effects, especially in the carotid and the spinal cord. In this study, a 72-channel coil system that consists of a 64-channel head coil combined with an 8-channel carotid coil was proposed and characterized in its performance by comparison with a 40-channel coil system. As a result, the proposed 72-channel coil system provides improved performance in SNR, parallel imaging capability, and image quality.
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