| Presentation | 1996/1/25 Measurement of Left Ventricle End-Diastolic Pressure by Analysis of Small Vibration on Heart Wall Michie Sato, Hiroshi Kanai, Noriyoshi Chubachi, Hideyuki Honda, Yoshiro Koiwa, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We have aimed to establish a non-invasive method for acoustic diagnosis of heart deseases and arteriosclerosis based on their elastic degeneration. Left ventricular (LV) pressure, which is a significant parameter for the clinical diagnosis of heart diseases, is usually measured by the invasive catheterization which inserts catheter to the heart via brachial artery or aorta vessel, although it is not favorable to repeat. In this paper, therefore, we present a new non-invasive method for estimation of the LV end-diastolic pressure, which is the most important for investigating cardiomechanism, by combining Mirsky's method and dimension analysis based on the LV sizes and the LV instantaneous eigenfrequency. The principle is confirmed by in vitro experiments by applying wavelet transform to the non-stationary vibration on the heart wall of an extracted caine heart. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Left Ventricular End-Diastolic Pressure / Eigenfrequency / Heart Wall Vibration / Wavelet Transform |
| Paper # | US95-86,EA95-80 |
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| Conference Information | |
| Committee | US |
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| Conference Date | 1996/1/25(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Paper Information | |
| Registration To | Ultrasonics (US) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Measurement of Left Ventricle End-Diastolic Pressure by Analysis of Small Vibration on Heart Wall |
| Sub Title (in English) | |
| Keyword(1) | Left Ventricular End-Diastolic Pressure |
| Keyword(2) | Eigenfrequency |
| Keyword(3) | Heart Wall Vibration |
| Keyword(4) | Wavelet Transform |
| 1st Author's Name | Michie Sato |
| 1st Author's Affiliation | Faculty of Engineering, Tohoku University() |
| 2nd Author's Name | Hiroshi Kanai |
| 2nd Author's Affiliation | Faculty of Engineering, Tohoku University |
| 3rd Author's Name | Noriyoshi Chubachi |
| 3rd Author's Affiliation | Faculty of Engineering, Tohoku University |
| 4th Author's Name | Hideyuki Honda |
| 4th Author's Affiliation | School of Medicine, Tohoku University |
| 5th Author's Name | Yoshiro Koiwa |
| 5th Author's Affiliation | School of Medicine, Tohoku University |
| Date | 1996/1/25 |
| Paper # | US95-86,EA95-80 |
| Volume (vol) | vol.95 |
| Number (no) | 478 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |