Endoscopic infrared diaphanoscopy: its use and feasibility in diagnostic and treatment procedure for paranasal sinus diseases

Viravuth Prapavat; Marietta Linnarz M.D.; Juergen U. G. Hopf M.D.; Juergen Beuthan; Michael Becker; Gerhard J. Mueller; Hans H. Scherer M.D.

doi:10.1117/12.180761

28 July 1994 Endoscopic infrared diaphanoscopy: its use and feasibility in diagnostic and treatment procedure for paranasal sinus diseases

Viravuth Prapavat, Marietta Linnarz M.D., Juergen U. G. Hopf M.D., Juergen Beuthan, Michael Becker, Gerhard J. Mueller, Hans H. Scherer M.D.

Author Affiliations +

Proceedings Volume 2131, Biomedical Fiber Optic Instrumentation; (1994) https://doi.org/10.1117/12.180761
Event: OE/LASE '94, 1994, Los Angeles, CA, United States

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.

Citation Download Citation

Viravuth Prapavat, Marietta Linnarz M.D., Juergen U. G. Hopf M.D., Juergen Beuthan, Michael Becker, Gerhard J. Mueller, and Hans H. Scherer M.D. "Endoscopic infrared diaphanoscopy: its use and feasibility in diagnostic and treatment procedure for paranasal sinus diseases", Proc. SPIE 2131, Biomedical Fiber Optic Instrumentation, (28 July 1994); https://doi.org/10.1117/12.180761

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