Multiplex RARE Dixon: A Novel Multislice RARE Sequence Applied to Simultaneous Slice Fat-Water Dixon Imaging

Kuan J. Lee¹, Benjamin Zahneisen¹, Jrgen Hennig¹, Weigel Matthias¹, Jochen Leupold¹

Multiplex RARE is a new sequence in which multiple slices are simultaneously excited and refocused in a spin-echo train. The echo trains are interleaved in such a way that CPMG conditions are fulfilled at all times, and signals from slices can be separated, preventing aliasing. This work demonstrates how the sequence may be used in a novel fat-water Dixon method, which enables fast volume coverage of multiple, simultaneously excited slices. The technique is demonstrated in-vivo and compared with fTED, another fast Dixon method.