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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