alexa High-Resolution ENT Video Endoscope with Superior Image
ISSN: 2161-119X

Otolaryngology: Open Access
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High-Resolution ENT Video Endoscope with Superior Image Quality Equivalent to that of Gastric Video Endoscopes

Atsunobu Tsunoda*, Koichi Tsunoda, Takuro Sumi, Seiji Kishimoto and Ken Kitamura

Department of Otolaryngology and Head and Neck Surgery, Tokyo Medical and Dental University, Japan

Corresponding Author:
Atsunobu Tsunoda, MD
Department of Otolaryngology and Head and Neck Surgery
Tokyo Medical and Dental University
Bunkyo-ku, Yushima 1-5-45, Tokyo 113-8519, Japan
Tel: +81 3-3813-6111
Fax: 81-3-3813-2134
E-mail: [email protected]

Received date: February 07, 2014; Accepted date: March 28, 2014; Published date: March 04, 2014

Citation: Tsunoda A, Tsunoda K, Sumi T, Kishimoto S, Kitamura K (2014) High-Resolution ENT Video Endoscope with Superior Image Quality Equivalent to that of Gastric Video Endoscopes. Otolaryngology 4:166. doi:10.4172/2161-119X.1000166

Copyright: © 2014 Tsunoda A, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.



Background and study aims: To assess the usability of high resolution fiberscope which has equivalent image quality to that of the esophageal and gastric video endoscopes

Patients and methods: Image resolution of this endoscope was estimated by the United States Air Force (USAF) resolution test chart. Clinical application was done between January and December 2010 and transnasal observation of the larynx and hypopharynx were performed during this period. These examinations were done for screening and follow-up for patients with hypopharyngeal and laryngeal disorders.

Results: This endoscope could distinguish features on a scale of nearly 20 μm, and abnormal vascular patterns on the mucosal surface characteristic of carcinomas were clearly observed under a conventional light source. In addition, these changes on the mucosal surface became more apparent with use of the i-SCAN®. Nevertheless, the handling of this video endoscope was similar to that of popular ENT video endoscopes, and all patients tolerated its use well.

Conclusion: This new device may dramatically improve pharyngolaryngeal examination in ENT clinics.


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