Abstract #4018

A tight-fit flexible high-impedance coil array for high-resolution imaging of small ex-vivo specimen using a human 7T scanner

Koji Fujimoto¹, Bei Zhang², Shin-ichi Urayama¹, Atsushi Shima³, Nobukatsu Sawamoto⁴, Ryosuke Takahashi³, Tomohisa Okada¹, and Martijn A. Cloos²

¹Human Brain Research Center, Graduate School of Medicine, Kyoto University, Kyoto, Japan, ²Center for Advanced Imaging Innovation and Research (CAI2R) and Bernard and Irene Schwartz Center for Biomedical Imaging, Department of Radiology, New York University School of Medicine, New York, NY, United States, ³Department of Neurology, Kyoto University Graduate School of Medicine, Kyoto University, Kyoto, Japan, ⁴Department of Human Health Sciences, Kyoto University Graduate School of Medicine, Kyoto University, Kyoto, Japan

By borrowing concepts from the high-impedance glove coil, we propose an “elastic-tube coil” for imaging ex-vivo specimen at 7 Tesla. The elasticity of the sock makes it easy to setup and ensures a minimal distance between the coils and the specimen. Two high-impedance elements were stitched to an elastic tube suspended in a custom 3D printed housing. Volumetric gradient echo images of an ex-vivo human brain specimen were acquired with 60um-isotropic resolution.

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