Noninvasive method for measurement of elasticity in aortic wall using cineradiography

Elasticity in the aortic wall was determined noninvasively by measuring the maximal and minimal external diameter of the pulsing thoracic aorta by use of cineradiography in combination with esophagography. Pulse wave velocity and the cross-sectional area were calculated from these values, and their relationship to aging and arteriosclerotic disease were evaluated. The changes of pulse wave velocity and cross-sectional area obtained by this method represent quantitatively the degrees of arteriosclerotic change and aging of the aortic wall.