Measurement of local pulse wave velocity in arteriosclerosis byultrasonic Doppler method
Chubachi, N.
Kanai, H.
Murata, R.
Koiwa, Y.
Dept. of Electr. Eng., Tohoku Univ., Sendai;
This paper appears in: Ultrasonics Symposium, 1994. Proceedings., 1994 IEEE
Publication Date: 1-4 Nov 1994
Volume: 3,
On page(s): 1747-1750 vol.3
Meeting Date: 11/01/1994 - 11/04/1994
Location: Cannes, France
ISBN: 0-7803-2012-3
References Cited: 13
INSPEC Accession Number: 5039078
Digital Object Identifier: 10.1109/ULTSYM.1994.401928
Current Version Published: 2002-08-06
Abstract
This paper presents a new method to measure local pulse wave
velocity (PWV), which is an index of the hardness in the range of
several millimeters on the aortic wall for diagnosis of the early stage
arteriosclerosis. Small vibration signals are measured simultaneously at
two adjacent points on the aortic wall near the aortic valve by
electronically alternating the direction of an ultrasonic beam. Transit
delay time of the pulse wave between these two points is determined from
the two vibration signals obtained by this alternating-beam method.
Local PWV at a point several millimeters along the aorta is precisely
obtained by dividing distance between these points by resultant transit
delay time. Such local acoustic properties of the blood vessels will
prove useful, especially for noninvasive diagnosis of early stage
arteriosclerosis
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