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Abstract #4660

Self-Navigated IDEAL Water-Fat Separation

Yun Jiang1, Jeffrey Tsao1

1Global Imaging Group, Novartis Institutes For BioMedical Research, Cambridge, MA, USA

IDEAL water-fat separation is being adopted in quantitative analysis of adiposity. The presence of motion during acquisition causes motion artifacts, which can result in quantification inaccuracies. To overcome this challenge, a double-echo navigator technique was incorporated in the IDEAL sequence to monitor the signal fluctuation caused by motion. Retrospective motion correction led to a substantial reduction of motion artifacts, thereby improving the accuracy and robustness of the quantification.