Accuracy evaluation in the measurement of a small change in the thickness of arterial walls and the measurement of elasticity of the human carotid artery

Hideyuki Hasegawa, Hiroshi Kanai, Nozomu Hoshimiya, Noriyoshi Chubachi, Yoshiro Koiwa

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

For the diagnosis of the early stages of atherosclerosis, it is important to evaluate the local acoustic characteristics of the arterial wall. For this purpose, it is necessary to increase the spatial resolution in the axial direction to several millimeters, which corresponds to the size of the macular lesion on the surface of the wall. We have proposed a method for measuring mall velocity signals on the intima and adventitia of the arterial wall from the skin surface using pulsive ultrasonic waves. The mall change in thickness of the arterial wall is obtained by integrating the difference between the two velocity signals on the intima and adventitia. The elastic property of the arterial wall is noninvasively evaluated from the change in thickness and the arterial inner pressure. In this paper, we evaluate the accuracy of the proposed method for measuring the small displacement. Moreover, we applied this method to evaluate the elastic property of the arterial wall of 50 patients and 8 healthy subjects.

Original languageEnglish
Pages (from-to)3101-3105
Number of pages5
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume37
Issue number5 SUPPL. B
DOIs
Publication statusPublished - 1998 May

Keywords

  • Atherosclerosis
  • Small change in thickness
  • Small displacement
  • Small velocity signal

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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