Meeting Banner
Abstract #1522

Comparison of semi-LASER localized Brain MRS at 3T and 7T using 32-channel head coils

Subechhya Pradhan 1 , Susanne Bonekamp 1 , Joseph Gillen 1 , Laura Rowland 2 , S. Andrea Wijtenburg 2 , Richard A.E. Edden 1 , and Peter B Barker 1

1 Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States, 2 Psychiatry, University of Maryland School of Medicine, Baltimore, Maryland, United States

MRS is expected to benefit from moving to high field strengths such as 7T. However, there are also technical challenges associated with high fields, such as increased B0 and B1 field inhomogeneities. Therefore, it is important to compare 7T measurements to those at lower field. In this study, SNR, linewidths and Cramer-Rao lower bounds are compared between 3T and 7T MRS in 3 brain regions of 4 healthy subjects. Measurements made with near identical methodology at both field strengths, including 32-channel head coils and semi-LASER localization. Improvements at 7T were found in all metrics examined, and were consistent with expectations.

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

Join Here