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.