Meeting Banner
Abstract #1018

Total Current Reduced Design for Brain B 0 Shim Coil using Singular Value Decomposition

Kohjiro Iwasawa 1 , Yosuke Otake 1 , and Hisaaki Ochi 1

1 Central Research Laboratory, Hitachi Ltd., Kokubunji, Tokyo, Japan

Local B 0 shim coils placed close to the head have been shown to greatly reduce the B 0 inhomogeneity of the brain. However, the total current increases according to the number of channels which were conventionally 32 or more. Here, we demonstrate a total current reduced brain shim coil design using singular value decomposition (SVD). An 18ch shim coil was designed using SVD to mitigate insignificant currents running in opposite directions. Simulated B 0 shimming comparison showed that the designed shim coil can greatly reduce the total current compared to conventional local shim coils while maintaining the B 0 shimming performance.

This abstract and the presentation materials are available to members only; a login is required.

Join Here