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Abstract #4281

Hiding Your Fat: Comparison of Fat Saturation Techniques for Single-Shot Fast Spin Echo Sequences for 7T Body Imaging

Sren Johst1, 2, Stephan Orzada1, 2, Anja Fischer1, 2, Lale Umutlu1, 2, Mark E. Ladd1, 2, Stefan Maderwald1

1Erwin L. Hahn Institute for Magnetic Resonance Imaging, University Duisburg-Essen, Essen, Germany; 2Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, Essen, Germany

Several different fat saturation (FS) techniques for single-shot fast spin echo (SSFSE) were compared at 7 Tesla, whereby the recently proposed Time Interleaved Acquisition of Modes (TIAMO) was used for the imaging portion of the sequence: A novel method using TIAMO (multiple fat-selective 90 RF pulses applied with alternating transmit RF modes), slice-selective gradient reversal (SSGR), and slice-selective smaller bandwidth refocusing pulses (SSB). SSGR performed best regarding FS, homogeneity of FS, and preservation of tissue signal intensity.