Yaohui Wang1,2, Qiuliang Wang1,2, 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
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 combination of
superconducting matrix coil and room-temperature shim coils is a powerful
shimming solution for ultrahigh field MRI system. The accuracy and stability of
the shimming effect is not susceptible to environmental factors like passive
shimming method.
Fig. 1 Superconducting
matrix coil and the third and fourth order room-temperature shim coils
Fig. 3 Magnetic field
distribution in the imaging volume: (a) initial magnetic field profile, (b) shimming
with superconducting matrix coil and (c) further shimming with room-temperature
shim coils
