| Paper Abstract and Keywords |
| Presentation |
2005-03-28 16:45
Improvement of Larynx-motion measurement system SKN/2A using a photo refrector
Ai Murayama, Toyohiko Hayashi, Yasuo Nakamura (Niigata Univ.), Noboru Michimi (Kobari Hospital) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
In order to establish a noninvasive and quantitative measurement of swallowing function, we have been developing a larynx-motion measurement system SFN-1, employing a pressure-sensor array. But the system has three dominant defects as follows: 1) being applicable solely to male subjects; 2) interference with natural swallowing due to pressurized anterior triangle; and 3) a low spatial resolution. In order to eliminate such defects, we updated the sensing devise into an array of twelve photo-reflectors in this study. Since a photo-reflector can detect the distance from it to the skin surface, the devise can measure the contour of a vertical cross-section of the skin surface in front of the larynx non-invasively, with a relatively high spatial-resolution. In order to evaluate its detection performance, we experimentally obtained measurement accuracy of the contour and the moving distance of a process. Additionally we measured subject’s larynx motion during actual swallowing. Consequently, the spatial resolution in the contour measurement was significantly improved from 8mm into 0.6mm, and the larynx motion was proved to be detectable. Thus the updated sensor could measure the thyroid motion during swallowing with a sufficient accuracy, suggesting its clinical applicability to the evaluation of swallowing function. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
ehabilitation of swallowing / larynx motion / bioinstrumentation / non-invasive measurement / / / / |
| Reference Info. |
IEICE Tech. Rep., vol. 104, no. 755, MBE2004-111, pp. 61-64, March 2005. |
| Paper # |
MBE2004-111 |
| Date of Issue |
2005-03-21 (MBE) |
| ISSN |
Print edition: ISSN 0913-5685 |
| Download PDF |
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| Conference Information |
| Committee |
MBE |
| Conference Date |
2005-03-28 - 2005-03-30 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Tamagawa Univ. |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
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| Paper Information |
| Registration To |
MBE |
| Conference Code |
2005-03-MBE |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Improvement of Larynx-motion measurement system SKN/2A using a photo refrector |
| Sub Title (in English) |
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| Keyword(1) |
ehabilitation of swallowing |
| Keyword(2) |
larynx motion |
| Keyword(3) |
bioinstrumentation |
| Keyword(4) |
non-invasive measurement |
| Keyword(5) |
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| 1st Author's Name |
Ai Murayama |
| 1st Author's Affiliation |
Niigata University (Niigata Univ.) |
| 2nd Author's Name |
Toyohiko Hayashi |
| 2nd Author's Affiliation |
Niigata University (Niigata Univ.) |
| 3rd Author's Name |
Yasuo Nakamura |
| 3rd Author's Affiliation |
Niigata University (Niigata Univ.) |
| 4th Author's Name |
Noboru Michimi |
| 4th Author's Affiliation |
Niigata Kobari Hospital (Kobari Hospital) |
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| Speaker |
Author-1 |
| Date Time |
2005-03-28 16:45:00 |
| Presentation Time |
25 minutes |
| Registration for |
MBE |
| Paper # |
MBE2004-111 |
| Volume (vol) |
vol.104 |
| Number (no) |
no.755 |
| Page |
pp.61-64 |
| #Pages |
4 |
| Date of Issue |
2005-03-21 (MBE) |
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