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Abstract #1991

3D contrast enhanced high definition, free-breathing Dixon imaging using radial stack of stars and respiratory gating and tracking: Clinical comparison to state of the art breath hold Dixon imaging

Gabriele Beck1, Michael Wyss2,3, Rene Patzwahl3, Joachim Hohmann3, Christoph Andreas Binkert3, Lars van Loon1, and Hans Peeters1

1Philips Healthcare, Best, Netherlands, 2Philips Healthcare, Switzerland, 3Institute for Radiology and Nuclearmedicine, Kantonsspital Winterthur, Switzerland

We investigated a motion immune Dixon TFE approach incorporating a 3D radial stack-of-stars acquisition module interleaved with a spiral excitation navigator to gate and track the acquisition. Image quality, sharpness and streaking artifact level and its variability over different patient breathing patterns is efficiently improved to an extent where it is preferred over the state-of-the art breath hold (BH) Dixon scans. Next to that, it allowed scan time reductions of 30% in average. This technique provides motion-free, high resolution hepatic imaging with the benefits of Dixon providing consistent good fat suppression over a large FOV with water, fat, IP and OP diagnostic information all-in-one scan.

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