Abstract #0556

Preliminary Clinical Experience with a Multiecho 2-Point DIXON (MDIXON) Sequence at 3T as an Efficient Alternative for Both the SAR-Intensive Acquired In- And Out-Of-Phase Chemical Shift Imaging as Well as for 3D Fat-Suppressed T1-Weighted Sequences Used

Thomas G. Perkins¹, Jeremy L. Van Tilburg², Gwenael Herigault³, Holger Eggers⁴, Adri Duijndam³, Gabriele Beck³, Shahid M. Hussain,^2,5

¹Philips Healthcare, Cleveland, OH, United States; ²The Nebraska Medical Center, Omaha, NE, United States; ³Philips Healthcare, Best, Netherlands; ⁴Philips Research, Hamburg, Germany; ⁵The University of Nebraska Medical Center, Omaha, NE, United States

Body MRI protocols at 3T are often lengthy due to decreased duty cycle, high SAR, and general inefficiencies of the sequences used. This study (n=22) assessed a new sequence, 2-point mDIXON (mDIXON), which, like the original DIXON, can provide in-phase (IP), out-of-phase (OP), water, and fat images with increased duty cycle and better image quality compared to existing methods. New mDIXON is a more efficient alternative and can replace the existing 2D IP and OP as well as gadolinium-enhanced 3D T1-weighted (eTHRIVE) sequences. The new strategy based on mDIXON will lead to much shorter body MRI exam times at 3T.