Quantitative Diagnosis of Abdominal Aortosclerosis by Ultrasonic Stiffness Parameter Beta, Specially Related to Pulse Wave Velocity

Abstract

From stiffness parameter beta obtained by ultrasonic deviometry, local abdominal aortosclerosis was diagnosed quantitatively, and its relation to space and constructive mean velocity from aortic ostium to total ilioaortic pulsation was studied. Seventy-two in- and outpatients with various diseases of the attached hospital to Toho University School of Medicine, their age being ranged from 33 to 78, were used as the subject. As a result the following 4 points were clarified:
(1) Sclerosis of common carotid artery was significantly higher in diabetes and cerebral infarction than that of the normal.
(2) Sclerosis of abdominal aorta was remarkable in its individual characteristics.
(3) Sclerosis of abdominal aorta was higher than that of common carotid artery.
(4) A high value was noted in correlation of the pulse wave velocity as space and constructive mean velocity with the beta value in axial direction of local abdominal aorta (r=0.611).
It can be considered that determination of common carotid arteriosclerosis and abdominal aortosclerosis from the distribution characteristics of common carotid artery and abdominal aorta stiffness parameter beta measured non-invasively by ultrasonic deviometer as well as aortosclerosis by aortic pulse wave velocity simultaneously is an extremely effective diagnosis clinicoepidemiologically as noninvasive and quantitative method.