Abstract #4052

Development of an 8-channel head array for MRI guided monkey ultrasound stimulation

Jo Lee^1,2, Xing Yang³, Qiaoyan Chen^1,2, Changjun Tie^1,2, Xiaojing Long^1,2, Nan Li^1,2, Xiaoliang Zhang^4,5, Hairong Zheng^1,2, and Ye Li^1,2

¹Lauterbur Imaging Research Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China, ²Shenzhen Key Laboratory for MRI, Shenzhen, China, ³High-Field Magnetic Resonance Brain Imaging Key Laboratory of Sichuan Province, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, China, ⁴Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, CA, United States, ⁵UCSF/UC Berkeley Joint Graduate Group in Bioengineering, San Francisco, CA, United States

For flexible operating the ultrasound probe in a monkey model, all three instruments, stereotaxic instrument, ultrasound probe and monkey RF coil, must match to each other. In this study, an 8-channel monkey coil was custom-designed to fit the specific stereotaxic instrument, ultrasound probe, and the rhesus monkey’s head in order to get a high quality images and efficient ultrasound operation. Compared to the commercial small flexible coil array, the custom-designed monkey coil provides higher SNR in all three orientations, higher spatial resolution in vivo, and better parallel imaging capability.

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