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High-speed digital imaging system with a transnasal flexible fiberoptic endoscope for observing vocal fold vibration


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Title: High-speed digital imaging system with a transnasal flexible fiberoptic endoscope for observing vocal fold vibration
Authors: Kaneko, Kenichi / Watanabe, Takeshi / Kihara, Chiharu / Sakaguchi, Koichi / Takahashi, Haruo
Issue Date: Jan-2017
Publisher: Nagasaki University School of Medicine / 長崎大学医学部
Citation: Acta medica Nagasakiensia, 61(1), pp.45-47; 2017
Abstract: The aim of this study was to establish a method for observing vocal fold vibration using a transnasal flexible fiberoptic endoscope and a high-speed camera for clinical use. We assembled a high-speed digital imaging system with an ordinary flexible endoscope and a highly sensitive high-speed camera (HAD-D71; DITECT Corporation, Tokyo, Japan) with ISO 5,000,000. The camera had an 8-GB internal storage memory for video capture of up to 7.0 s with the usual setting of 640 × 480 pixels at 4000 fps. Using the nasal route, the system enabled us to observe vocal fold vibration during running speech with adequate brightness and good image quality. Our high-speed digital imaging system with a flexible endoscope can be a useful option to observe vocal fold vibration during running speech and is an alternative to difficult transoral rigid endoscopy in patients complaining of voice problems.
Keywords: high-speed digital imaging / transnasal flexible fiberoptic endoscopy / vocal fold vibration / voice disorders / running speech
URI: http://hdl.handle.net/10069/37084
ISSN: 00016055
Type: Departmental Bulletin Paper
Text Version: publisher
Appears in Collections:Volume 61, No. 1

Citable URI : http://hdl.handle.net/10069/37084

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