Abstract #1995

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

Liliana Ma^1,2, Ning Jin³, Kelvin Chow⁴, Christoph Forman⁵, Andreas Greiser⁵, James Carr¹, and Michael Markl^1,2

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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