| Presentation | 1994/10/7 Basic experiments for measurement of propagation velocity of small vibration on aortic wall for diagnosis of arteriosclerosis Ryoji Murata, Hiroshi Kanai, Noriyoshi Chubachi, Yoshiro Koiwa, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We have developed a method to measure local pulse wave velocity (PWV) in the aorta using an ultrasonic probe for noninvasive diagnosis in the early stage of arteriosclerosis.The local PWV is obtained form the distance and the transit delay time between two small vibration signals on the aortic wall.The transit time is calculated from the gradient of the phase characteristic of the transfer function.As basic experiments in this paper,we measure the propagation velocity of the small vibration on a silicone tube which is vibrated with a rectangle pulse.In these experiments,the transfer characteristic of the small vibration is measured in the higher frequency range until several hundred hertz.Since the resultant propagation velocity of small vibrations describes the elasticity of vessel's wall very well,this method will be useful for local diagnosis of arteriosclerosis. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | arteriosclerosis / pulse wave velosity / ultrasonic Doppler / Small vibration / trunsfer function |
| Paper # | EA94-53 |
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| Conference Information | |
| Committee | EA |
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| Conference Date | 1994/10/7(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Engineering Acoustics (EA) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Basic experiments for measurement of propagation velocity of small vibration on aortic wall for diagnosis of arteriosclerosis |
| Sub Title (in English) | |
| Keyword(1) | arteriosclerosis |
| Keyword(2) | pulse wave velosity |
| Keyword(3) | ultrasonic Doppler |
| Keyword(4) | Small vibration |
| Keyword(5) | trunsfer function |
| 1st Author's Name | Ryoji Murata |
| 1st Author's Affiliation | Department of Electrical Engineering,Faculty of Engineering,Tohoku University() |
| 2nd Author's Name | Hiroshi Kanai |
| 2nd Author's Affiliation | Department of Electrical Engineering,Faculty of Engineering,Tohoku University |
| 3rd Author's Name | Noriyoshi Chubachi |
| 3rd Author's Affiliation | Department of Electrical Engineering,Faculty of Engineering,Tohoku University |
| 4th Author's Name | Yoshiro Koiwa |
| 4th Author's Affiliation | Department of First Internal Medicine,School of Medicine,Tohoku University |
| Date | 1994/10/7 |
| Paper # | EA94-53 |
| Volume (vol) | vol.94 |
| Number (no) | 267 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |