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Abstract #1998

Auto-calibrated Simultaneous Multi-Slice Pulse-Wave Velocity Imaging

Sebastian Schmitter1, Giulio Ferrazzi1, Bernd Ittermann1, Tobias Schaeffter1, and Susanne Schnell2

1Physikalisch-Technische Bundesanstalt (PTB), Braunschweig and Berlin, Germany, 2Department of Radiology, Northwestern University, Feinberg School of Medicine, Chicago, IL, United States

Pulse Wave Velocity (PWV) MR imaging is an established technique to derive aortic stiffness. The underlying phase-contrast velocity data is typically acquired during multiple breath-holds within multiple 2D planes placed perpendicularly to the aorta. In this work we investigate the application of an auto-calibrated multiband approach to simultaneously excite and acquire three slices. With this technique all data is obtained in a single breath-hold and without the need of external reference scans. Blood velocities and PWV for different MB acquisitions are compared to results obtained with a singleband approach that excites each slice separately.

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