Global and dynamic shimming with the scanner’s inbuilt shim system and a custom-made multi-coil setup at 9.4 T

Alireza Aghaeifar, Irena Zivkovic, Christian C. Mirkes, Theodor Steffen, Klaus Scheffler

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Abstract

The homogenization of static magnetic field (B0) is necessary for MR imaging. The unwanted B0 inhomogeneity becomes more pronounced in ultra high field, and the scanner's inbuilt shim setup can not compensate the B0 fluctuation as is needed. Here we propose to use combined setup of the multi-coil approach and the scanner's shim setup to achieve higher homogeneity of B0 field. We employed custom-built multi-coil for slice-wise shimming in combination with the scanner's shim setup for global shimming. The results show improvement about 50% compare to dynamic shimming alone in the most of the slices.
Original languageEnglish
Title of host publication25th Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine
Place of PublicationHonolulu, USA
Publication statusPublished - 2017
Externally publishedYes
Event25th ISMRM Annual Meeting and Exhibition - Honolulu, United States
Duration: 11 Apr 201727 Apr 2017
https://www.ismrm.org/2017-annual-meeting-exhibition/

Conference

Conference25th ISMRM Annual Meeting and Exhibition
Abbreviated titleISMRM2017
CountryUnited States
CityHonolulu
Period11/04/1727/04/17
Internet address

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