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Proceedings Paper

Dosimetry of tympanic membrane of pig versus laser radiation at 633 nm
Author(s): Hans-Jochen Foth; Silke Faerber; Axel Gauer; Konrad Becker; Rudolf Wagner
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Paper Abstract

In vitro experiments on tissue of tympanic membranes of pigs have been performed to determine the threshold for thermal effects like coagulation and perforation with 633 nm laser radiation. An optical setup with a CCD camera was used to monitor the spot size of the laser beam. Up to 38 samples have been investigated by semi thin slides and visualized by HE coloring. The lowest intensity at which a damage occurred was 2.5 kW/cm2. However even much higher intensities, for example 15 kW/cm2, did not damage the tympanic membrane. Only in four cases laser induced damage occurred showing coagulation, carbonization, and perforation.

Paper Details

Date Published: 18 January 1995
PDF: 7 pages
Proc. SPIE 2323, Laser Interaction with Hard and Soft Tissue II, (18 January 1995); doi: 10.1117/12.199187
Show Author Affiliations
Hans-Jochen Foth, Univ. Kaiserslautern (Germany)
Silke Faerber, Univ. Kaiserslautern (Germany)
Axel Gauer, Klinikum Kaiserslautern (Germany)
Konrad Becker, Klinikum Kaiserslautern (Germany)
Rudolf Wagner, Klinikum Kaiserslautern (Germany)


Published in SPIE Proceedings Vol. 2323:
Laser Interaction with Hard and Soft Tissue II
Hans Joerg Albrecht; Guy P. Delacretaz; Thomas H. Meier; Rudolf W. Steiner; Lars Othar Svaasand; Martin J. C. van Gemert, Editor(s)

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