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.