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

Daniel Giese^1,2, Tobias Schaeffter¹, Sebastian Kozerke^1,2

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.