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Abstract #1995

Highly accelerated 4D flow with compressed sensing for efficient evaluation of whole-heart hemodynamics

Liliana Ma1,2, Ning Jin3, Kelvin Chow4, Christoph Forman5, Andreas Greiser5, James Carr1, and Michael Markl1,2

1Radiology, Northwestern University, Chicago, IL, United States, 2Biomedical Engineering, Northwestern University, Evanston, IL, United States, 3Cardiovascular MR R&D, Siemens Medical Solutions USA, Inc, Cleveland, OH, United States, 4Cardiovascular MR R&D, Siemens Medical Solutions USA, Inc, Chicago, IL, United States, 5Siemens Healthcare, Erlangen, Germany

Recently, a highly accelerated compressed sensing (CS) 4D flow framework with navigator gating and retrospective ECG-gating was developed and tested in healthy volunteers and patients. This study aimed to determine the optimal protocol for high resolution (2-3 mm3) whole-heart 4D flow MRI in <8 minutes without respiratory gating, and minimization of respiratory artifacts while improving scan efficiency.

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