Abstract #4278

A 16-channel Dense Array for Macaque Cortices Imaging at 7T

Xiaotong Zhang^1,2,3, Yang Gao^1,2, Meizhen Qian^1,4, Yi Sun⁵, and Anna Wang Roe^1,2

¹Interdisciplinary Institute of Neuroscience and Technology, Qiushi Academy for Advanced Studies, Zhejiang University, Hangzhou, China, ²College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou, China, ³Key Laboratory for Biomedical Engineering of Ministry of Education, Zhejiang University, Hangzhou, China, ⁴School of Medicine, Zhejiang University, Hangzhou, China, ⁵MR Collaboration NE Asia, Siemens Healthcare, Shanghai, China

To improve the SNR and time efficiency of monkey brain imaging, we designed a multi-channel dense receive array for use at 7T. It can be flexibly mounted over the monkey’s head and can be used for studies in both awake and anesthetized conditions. The aim of the current design focuses on visualizing sub-millimeter tissue structure and probing neuronal activities in cortices of macaques, and as demonstrated in the experiment results, good SNR and tSNR are attained in cortical layers and up to ~1cm depth beneath the skull. The area of B1 sensitivity is large enough to encompass any area of the visual cortex.

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