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Proceedings Paper

Endoscopic infrared diaphanoscopy: its use and feasibility in diagnostic and treatment procedure for paranasal sinus diseases
Author(s): Viravuth Prapavat; Marietta Linnarz M.D.; Juergen U. G. Hopf M.D.; Juergen Beuthan; Michael Becker; Gerhard J. Mueller; Hans H. Scherer M.D.
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Paper Abstract

In the upper respiratory tract, a new endoscopic procedure with ultra-thin and miniature fiberoptics (290 micrometers - 2 mm) finds a wide range of application in the differential diagnosis and treatment of pathological changes, especially within the nasal cavities and the paranasal sinuses. In order to restore the normal condition of ventilation and drainage of the paranasal sinuses or to remove internal inflammation the given foramina or ducts are widened mechanically. In case of the ostium nasomaxillaris `anatomical landmarks' can be used for orientation. But in case of the ostium nasofrontalis ((theta) 1 - 3 mm) or revision surgery where the anatomical conditions are not definitely defined or totally changed, problems can occur due to a lack of orientation. Dangerous complications which can occur due to surgical disorientation are the injury of the optic nerve and the dura mater. This paper presents an endoscopic variation of the infrared idaphanoscopy (IRD), a band-limited cw transillumination method, which enables localization of the foramina or ducts during the endoscopic procedure resulting in a reduction in the risk of disorientation.

Paper Details

Date Published: 28 July 1994
PDF: 6 pages
Proc. SPIE 2131, Biomedical Fiber Optic Instrumentation, (28 July 1994);
Show Author Affiliations
Viravuth Prapavat, Univ. Hospital Steglitz/Freie Univ. Berlin (Germany)
Marietta Linnarz M.D., Univ. Hospital Steglitz/Freie Univ. Berlin (Germany)
Juergen U. G. Hopf M.D., Univ. Hospital Steglitz/Freie Univ. Berlin (Germany)
Juergen Beuthan, Univ. Hospital Steglitz/Freie Univ. Berlin (Germany)
Michael Becker, Richard Wolf GmbH (Germany)
Gerhard J. Mueller, Univ. Hospital Steglitz/Freie Univ. Berlin (Germany)
Hans H. Scherer M.D., Univ. Hospital Steglitz/Freie Univ. Berlin (Germany)

Published in SPIE Proceedings Vol. 2131:
Biomedical Fiber Optic Instrumentation
James A. Harrington; David M. Harris; Abraham Katzir; Fred P. Milanovich, Editor(s)

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