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Abstract #1872

A dual-slab 3D gradient echo spectroscopic imaging sequence with correction of respiration- and hardware-related frequency variations for bilateral evaluation of lipid composition in the breast

Pippa Storey1, Linda Moy1, and Sungheon G. Kim 1

1Radiology Department, New York University School of Medicine, New York, NY, United States

To enable rapid bilateral evaluation of lipid composition in the breast with high spatial resolution and easy integration into clinical workflow, we have developed a gradient echo spectroscopic imaging sequence, which consists of a simultaneous dual-slab 3D gradient echo imaging acquisition with 128 monopolar echoes. To correct for the frequency drift of the scanner over the course of the acquisition, as well as frequency fluctuations due to respiration, the sequence includes a quick frequency navigator every TR period. The navigator was found to improve spectral quality in all subjects.

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