Abstract #3334

A new route of ultrahigh field MRI shimming: hybrid superconducting matrix coil and multi-order spherical harmonics room-temperature shim coils

Yaohui Wang^1,2, Qiuliang Wang^1,2, Yang Liu¹, Jigang Zhao¹, Hui Wang¹, Junsheng Cheng¹, and Feng Liu³

¹Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing, China, ²University of Chinese Academy of Sciences, Beijing, China, ³School of Information Technology and Electrical Engineering, The University of Queensland, Brisbane, Australia

A new route for ultrahigh field MRI shimming was proposed which utilized hybrid superconducting matrix coil and multi-order room-temperature shim coils. The proposed scheme was aimed to create a stable and accurate shimming solution for high homogeneous magnetic field magnet. A real 9.4T whole-body MRI magnetic field profile was used to validate the shimming strategy and a remarkable effect was achieved. Therefore, the new shimming method deserves to generalize to ultrahigh field MRI system.

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