Abstract #4241

Fast Spin-Echo Triple Echo Dixon: Initial Clinical Experience with a Novel Pulse Sequence for Simultaneous Fat Suppressed and Non Fat Suppressed T2-Weighted Spine Mr Imaging

Russell Norman Low^1,2, Matthew J. Austin³, Jingfei Ma⁴

¹Sharp and Children's MRI Center, San Diego, CA, United States; ²San Diego Imaging, San Diego, CA, United States; ³Radiology, Univeristy of California at San Diego, San Diego, CA, United States; ⁴Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, TX, United States

We evaluate a novel Dixon based FSE sequence (fTED) for spine imaging that efficiently provides T2 weighted imaging with and without fat suppression in a single acquisition. Compared to STIR images the fTED water images showed equal homogeneity of fat suppression with less motion artifact, sharper anatomic detail, and less susceptibility artifact. The T2 fTED images without fat suppression were equivalent to T2 FRFSE images for lesion detection. FTED provides T2 imaging of the spine with and without fat suppression with a 56% savings in scan time compared to STIR and T2 FRFSE imaging.