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Abstract #2484

MR-SASSI-Accelerated, B1-Insensitive, Magnetic Resonance Spectroscopic Imaging at 7T: first in vivo results

Rebecca Emily Feldman1, Gaurav Verma1, and Priti Balchandani1

1Translational and Molecular Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States

Magnetic Resonance Spectroscopic Imaging (MRSI) is a signal-starved technique compared to conventional magnetic resonance imaging. At ultra-high fields, such as 7 Tesla the increased signal to noise permits the acquisition of improved spectra. Spatial localization performed the volume of interest is can be time consuming. We created a multi-region excitation pulse embedded within a B1-insensitive MRSI sequence and demonstrated its use in vivo to excite two distinct spectroscopic grids which are simultaneously acquired and disentangle using a low-resolution reference scan, thus accelerating the acquisition of MRSI data.

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