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Abstract #0132

Cost Function Guided 3rdorder B0 Shimming for MR Spectroscopic Imaging at 7T

Jeroen Cornelis Willem Siero1,2, Vincent Oltman Boer2, Johannus Marinus Hoogduin1,2, Peter R. Luijten2, Dennis W. Klomp2

1Brain Division, University Medical Center Utrecht, Utrecht, Netherlands; 2Radiology, University Medical Center Utrecht, Utrecht, Netherlands

A novel shimming method was developed for finding optimal shim fields that minimize B0 inhomogeneities on a user-defined region of interest while confining the B0 inhomogeneities outside this ROI. Experiments show that employing this shimming approach, chemical shift imaging (CSI) can be obtained without baseline distortions while maintaining a narrow spectral line width.