Noninvasive method of determining arterial wall tension and arterial segmentation by pulse transit time and pulse wave velocity

摘要

A method of noninvasively obtaining a physiological parameter of a fluid vessel. A series of pressure values are applied to a region of the vessel to adjust the transmural pressure of the vessel wall. At each of the pressure values at least one of a pulse transit time and a pulse wave velocity through the region of the vessel is measured. At least one of vessel compliance and vessel segmentation is determined as a function of the pulse transit time or pulse wave velocity and the applied pressure.