Optical Quality of the Nasendoscope with and without the Endosheath

Vaz, F, Ripley, L, Lim, D, Kanegaonkar, R and Harries, M (2006) Optical Quality of the Nasendoscope with and without the Endosheath. Journal of Laryngology and Otology, 120 (5). pp. 385-388. ISSN 0022-2151

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With the increasing use of the endosheath in clinical practice, we set out to investigate the quality of the nasendoscope image produced with and without an endosheath. It has been suggested by some users that the endosheath degrades the image. We used a spectrophotometer to assess the optical transmission of the endosheath and found no selective chromatic absorption. However, on requesting nine experienced users to document whether they could differentiate between the sheathed and unsheathed endoscope, a significantly correct answering pattern was obtained in repeated blinded experiments. This suggests that individuals can distinguish between the sheathed and unsheathed nasendoscope view and that the image is indeed altered when an endosheath is employed.

Item Type: Article
Schools and Departments: School of Engineering and Informatics > Engineering and Design
Depositing User: Lionel Ripley
Date Deposited: 06 Feb 2012 19:43
Last Modified: 30 Mar 2012 10:46
URI: http://sro.sussex.ac.uk/id/eprint/21898
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