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Abstract #0644

Compressed sensing accelerated 4D flow magnetic resonance imaging of the cerebrospinal fluid.

Kristina Sonnabend1, Elena J├Ąger1, David Maintz1, Kilian Weiss1,2, and Alexander Bunck1
1University of Cologne, Faculty of Medicine and University Hospital Cologne, Institute for Diagnostic and Interventional Radiology, Cologne, Germany, 2Philips GmbH, Hamburg, Germany

Cerebrospinal fluid (CSF) flow dynamics are relevant parameters in the diagnosis of neurological diseases and can be accessed by three-dimensional time-resolved phase-contrast MRI (4D flow MRI). However, these measurements are accompanied by long scan times making acquisition acceleration necessary to accomplish clinical feasibility. The aim of this study was to evaluate the feasibility of compressed sensing (CS) acceleration in 4D flow MRI of the CSF. CS factors 4 to 10 were compared against the conventional SENSE in 16 healthy subjects. Preliminary results show feasibility of CS factor 6 with comparable image and velocity data quality.

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