Evaluation of Swallowing Function by Pulsed Doppler Ultrasound Investigation (Preliminary Report)
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- Ikegami Satoshi
- Tenri Hospital
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- Shoji Kazuhiko
- Tenri Hospital
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- Suzuki Shinji
- Tenri Hospital
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- Kishimoto Yo
- Tenri Hospital
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- Kojima Tsuyoshi
- Tenri Hospital
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- Takahashi Atsuhito
- Tenri Hospital
Bibliographic Information
- Other Title
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- パルスドプラ法による嚥下機能検査法(第一報)
- リンショウ パルスドプラホウ ニ ヨル エンゲ キノウ ケンサホウ ダイ1ポウ
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Abstract
In this study we suggest that the velocity of water entering the cervical esophagus can be used as an index of pharyngeal swallowing function. In this article, the basic in vitro principles of water and viscous water flow velocity evaluation using ultrasonic methods are introduced. Water flow involving small gas bubbles passing through a silicon tube could be monitored in the B-mode images and the flow velocity could be measured by Doppler shift spectra produced by a medical ultrasound imaging (GE YOKOGAWA LOGIQ500 and linear convex probe 739L). By an in vitro experiment, we confirmed that the maximum water flow velocity (Vmax) obtained from Doppler shift spectra and actually measured water flow velocity showed a high correlation. The maximum velocity of viscous water flow measured from Doppler shift spectra and actually measured viscous water flow velocity also showed a high correlation.<br>We measured Doppler spectra of water flow speed through the cervical esophagus of five subjects (two male, 41-50 y. o; three females, 28-42 y. o) without dysphasia 10 times and examined the coefficient of variation of Vmax. Values of the coefficient variation of Vmax were 3.4, 3.8, 8.8, 12.7, 15.5% (median 8.8%). It seemed that Vmax could be used as an index of the speed of water flow during swallowing. We suggest that the Doppler spectra of water flow speed through the cervical esophagus in swallowing analysis may be useful for assessing pharyngeal swallowing function, and that it may be useful in the diagnosis of pharyngeal swallowing disorders.
Journal
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- Practica Oto-Rhino-Laryngologica
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Practica Oto-Rhino-Laryngologica 99 (8), 669-677, 2006
The Society of Practical Otolaryngology
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Keywords
Details 詳細情報について
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- CRID
- 1390282679239034368
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- NII Article ID
- 10018228641
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- NII Book ID
- AN00107089
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- ISSN
- 18844545
- 00326313
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- NDL BIB ID
- 8058725
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed