A New Method for the Determination of Aortic Pulse Wave Velocity
Howarth S, Wilkinson I, Graves M, Harle J, Gillard J
University of Cambridge Hospitals NHS Foundation Trust
We have developed a new method for the determination of aortic pulse wave velocity (PWV) using 2D cine phase contrast MRI. The method uses a threshold of the calculated sum flow instead of the conventional threshold of percentage peak velocity for the determination of the time delay. Results are presented from an ongoing clinical trial assessing the determination of aortic PWV within a young and old population group. The new method shows a statistically significant increase in PWV amongst the older population group at the proximal and distal aortic regions which is not seen using the conventional method.