Presentation 2000/10/4
Cross-sectional lmaging of Elastic Property in Arterial Wall Using Intravascular Ultrasonography
Hitoshi Mita, Hiroshi Kanai,
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Abstract(in English) There have been several studies on imaging of distribution of the elasticity of arterial wall using Intravascular Ultrasonography(IVUS). In these studies, the elasticity is estimated only in the ventricular diastole. However, the active motion of the smooth muscle of the media is induced in the diastole. Thus, the strain measured in the diastole includes both the passive characteristics and the active characteristics of smooth muscle. In the ejection period, however, the IVUS probe has large motion due to pulsatile flow. We proposed a method determining the regional change in thickness on compensating the probe position. Using a silicone rubber tube, which is driven by pulsatile flow generated by an artificial heart, the 2-D distribution of the regional change in thickness and elasticity is determined by the proposed method. The incremental elastic modulus is homogeneously obtained in the cross-sectional plane of the wall and its value coincides with that determined in the static pressure-strain test. Using the method the change in thickness of the tube can be accurately measured, and cross-sectional elastic image is displayed.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) intravascular ultrasound / change in thickness of the arterial wall / elastic modulus
Paper # US2000-62
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Conference Information
Committee US
Conference Date 2000/10/4(1days)
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Registration To Ultrasonics (US)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Cross-sectional lmaging of Elastic Property in Arterial Wall Using Intravascular Ultrasonography
Sub Title (in English)
Keyword(1) intravascular ultrasound
Keyword(2) change in thickness of the arterial wall
Keyword(3) elastic modulus
1st Author's Name Hitoshi Mita
1st Author's Affiliation Dept. of Electrical Eng., Graduate School of Eng., Tohoku Univ.()
2nd Author's Name Hiroshi Kanai
2nd Author's Affiliation Dept. of Electrical Eng., Graduate School of Eng., Tohoku Univ.
Date 2000/10/4
Paper # US2000-62
Volume (vol) vol.100
Number (no) 333
Page pp.pp.-
#Pages 8
Date of Issue