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Abstract #0504

Highly Accelerated 4D Flow using Spiral Sampling and Dynamic Compressed Sensing for Flow Quantification in Abdominal Vessels

Hadrien Dyvorne 1 , Ashley Knight-Greenfield 1 , Guido Jajamovich 1 , Cecilia Besa 1 , Aurelien F Stalder 2 , Julio Garcia Flores 3 , Michael Markl 3 , and Bachir Taouli 1

1 Icahn School of Medicine at Mount Sinai, New York, NY, United States, 2 Siemens AG Healthcare sector, Erlangen, Germany, 3 Radiology, Feinberg School of Medicine, Northwestern Univeresity, Chicago, IL, United States

A new technique was developed to perform fast acquisition of 4D flow in abdominal vessels. By combining undersampled spiral sampling and dynamic compressed sensing reconstruction, 4D flow could be acquired in significantly shorter time, down to a breath hold. In 5 subjects, the novel technique shows high correlation with a standard Cartesian 4D flow measurement and good agreement with 2D phase contrast. Accelerated spiral 4D flow has high potential for comprehensive assessment of hemodynamics in a clinically acceptable scan time.

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