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Abstract #3854

Application of Highly Accelerated Cartesian Phase Contrast Imaging Using Compressed Sensing and Iterative Reconstruction to Real-Time and Vector Encoded Flow Imaging

Andreas Greiser 1 , Michael Zenge 1 , Michaela Schmidt 1 , Mehmet Akif Gulsun 2 , and Aurelien F. Stalder 1

1 Siemens AG Healthcare Sector, Erlangen, Bavaria, Germany, 2 Imaging and Computer Vision, Siemens Corporation, Corporate Technology, Princeton, NJ, United States

We demonstrate the feasibility of compressed sensing for Cartesian MR flow imaging (CS Flow) with inline reconstruction to enable real-time and high-resolution 3-directional flow imaging. Single-slice phase contrast datasets were acquired using a real-time protocol (R=11.2) and a segmented flow protocol with 3-directional flow encoding with (R=7.7). Real-time results correlated with a segmented reference scan and peak velocity values were in good agreement, flow volumes were overestimated. 3-directional CS Flow could be visualized as velocity magnitude and vectors. CS Flow can enable real-time flow quantification in-cooperative and arrhythmic patients and provides high-resolution vector-encoded flow imaging in a short breathhold.

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