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Abstract #0732

Pulse Wave Velocity Assessment in a Single Breathhold using Compartment k-t PCA

Daniel Giese1,2, Tobias Schaeffter1, Sebastian Kozerke1,2

1Division of Imaging Sciences & Biomedical Engineering, King's College London, London, United Kingdom; 2Institute for Biomedical Engineering, Univeristy & ETH Zurich, Zurich, Switzerland

Pulse wave velocity assessment using cine phase-contrast measurements suffers from long scan times due to the required high temporal resolution. We propose the acquisition of highly undersampled phase-contrast data in combination with compartment k-t PCA to enable acquisition of two flow encoded slices through ascending and descending aorta with a temporal resolution of under 10ms in a single breathhold. It is shown that the calculated pulse wave velocities compare well with literature values and show strong correlation with velocities measured using conventional fully sampled data acquisitions.