Keywords: RF Arrays & Systems, RF Arrays & Systems
Motivation: For fMRI studies that do not require whole-brain coverage, high-spatial resolution and a large visual field can be achieved with an open-face coil design.
Goal(s): To increase image SNR for high-resolution imaging of the human visual cortex with limited receive channels .
Approach: An open-face dual-row 8-channel transceiver array in combination with a 32-channel receive array has been developed. This new hardware provides 3D RF shimming capability, SNR gain in the occipital cortex, and a large visual field.
Results: The new coil achieved a 39% SNR increase in the occipital cortex compared to the industry standard 7T whole-brain head coil.
Impact: The high gain in SNR will enable high-spatial resolution BOLD signal in the occipital cortex while simultaneously stimulating a large visual field extending far into the periphery, to perform layer-specific fMRI around the blind spot and peripheral visual fields.
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