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Abstract #3762

Abdominal Fat-Water Separation in High Temporal and Spatial Resolution During Free Breathing

Riad Ababneh1, Thomas Benkert2, Martin Blaimer2, Felix A. Breuer2

1Physics, Yarmouk University, Irbid, Jordan; 2Research Center Magnetic Resonance Bavaria, Wrzburg, Bavaria, Germany

We present a robust approach to separate fat and water signals in the abdomen during free breathing. The approach combined with the k-space-weighted image contrast (KWIC) technique of different respiratory phases in free-breathing. In this study a radial TrueFISP sequence was modified, wherein TE was made to vary between subsequent readouts. Good separation without streaking artifacts or blurring due to respiratory motion was obtained in all studied cases.

Keywords

abdomen abdominal according accurate achieve achieved acquisition agent aims allow applied artifacts audience basis behave bolus breathing capable challenge changing chemical clinical clinicians combined component components conspicuous constant contents contrast correction decomposition detected difficult direct dynamic eigenvalues employing enable enabling encoding enhanced enhancing especially estimation even existing expected fatty feasible features filtered filtering finally force frame free funding glover golden good healthy ideal important increment inhomogeneity iterative least like maintaining manner martin matrix modified motion noise novel objects periodically physicists physics presence principal processing projection projections pulse quality radial reconstruct reconstruction reducing reeder remains removed repeated require residual resolution resolved respectively respiratory robust sampling scanner sector separate separated separating separation series simultaneous simultaneously song space spatial species squares strategies streaking studied studies subjects subsequent sufficient support target technical temporal thereby tissue tracking true typically unfold variation variations volunteer water