Analysis of arterial wall motion for measurement of regional pulse wave velocity

The regional elastic property of the arterial wall is a useful marker for the diagnosis of atherosclerosis because an atherosclerotic lesion is formed locally. Pulse wave velocity is a noninvasive index for the evaluation of the elasticity of the arterial wall. However, a high temporal resolution is...

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Bibliographic Details
Published inJapanese Journal of Applied Physics Vol. 57; no. 7S1; pp. 7 - 11
Main Author Hasegawa, Hideyuki
Format Journal Article
LanguageEnglish
Published Tokyo The Japan Society of Applied Physics 01.07.2018
Japanese Journal of Applied Physics
Subjects
Atherosclerosis
Elastic properties
Elasticity
Feasibility studies
Frames per second
Measuring instruments
Regional development
Temporal resolution
Ultrasonic methods
Ultrasonic testing
Veins & arteries
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Summary:The regional elastic property of the arterial wall is a useful marker for the diagnosis of atherosclerosis because an atherosclerotic lesion is formed locally. Pulse wave velocity is a noninvasive index for the evaluation of the elasticity of the arterial wall. However, a high temporal resolution is required for the measurement of the arterial wall motion because the pulse wave propagates along the artery at several meters per second. In the present study, the arterial wall motion was measured at a high temporal resolution at 1302 frames per second (fps) using plane-wave ultrafast ultrasound. Also, a method of estimating the temporal and spatial frequencies of the pulse wave was developed for the determination of the regional pulse wave velocity in a short segment of about 20 mm along the artery. The accuracy of the proposed method was evaluated by simulation experiments and its feasibility was examined in the in vivo measurement of the human carotid artery.
ISSN:0021-4922
1347-4065
DOI:10.7567/JJAP.57.07LF01