Presentation 1993/5/26
Experiments of Measuring Pulse Wave Velocity for Non-Invasive Diagnosis of Regional Atherosclerosis
Kenichi Kawabe, Masahiko Takano, Ryoji Murata, Hiroshi Kanai, Noriyoshi Chubachi, Yoshiro Koiwa,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) We simultaneously detect small vibrations at the two points on the Aortic Wall near a heart using two Ultrasonic transducers.By applying the spectrum analysis to the resultant two vibration signals,the transfer function between the two vibrations is obtained.The gradient of the phase characteristic of the transfer function gives a transmit delay time of pulse wave due to propagation between two points.From the resultant transmit delay time and distance between two points,regional Pulse Wave Velocity(PWV)is obtained.At the same time,the reliability of these analysis is checked by using the coherence function.From the experimental results,propagation characteristics of the velocity of the pulse wave on the blood vessel is obtained.These regional acoustic properties of the blood vessel will be very useful for diagnosis of the Arteriosclerosis.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Arteriosclerosis / Pulse wave velocity / Young′s modulus / Ultr asonic Doppler method / Transfer function
Paper # US93-8
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Committee US
Conference Date 1993/5/26(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) Experiments of Measuring Pulse Wave Velocity for Non-Invasive Diagnosis of Regional Atherosclerosis
Sub Title (in English)
Keyword(1) Arteriosclerosis
Keyword(2) Pulse wave velocity
Keyword(3) Young′s modulus
Keyword(4) Ultr asonic Doppler method
Keyword(5) Transfer function
1st Author's Name Kenichi Kawabe
1st Author's Affiliation Department of electrical engineering,Faculty of Engineering,Tohoku University()
2nd Author's Name Masahiko Takano
2nd Author's Affiliation Department of electrical engineering,Faculty of Engineering,Tohoku University
3rd Author's Name Ryoji Murata
3rd Author's Affiliation Department of electrical engineering,Faculty of Engineering,Tohoku University
4th Author's Name Hiroshi Kanai
4th Author's Affiliation Department of electrical engineering,Faculty of Engineering,Tohoku University
5th Author's Name Noriyoshi Chubachi
5th Author's Affiliation Department of electrical engineering,Faculty of Engineering,Tohoku University
6th Author's Name Yoshiro Koiwa
6th Author's Affiliation Internal medicine,Tohoku University
Date 1993/5/26
Paper # US93-8
Volume (vol) vol.93
Number (no) 65
Page pp.pp.-
#Pages 8
Date of Issue