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Proceedings Paper

In vitro interstitial laser (805 nm) photocoagulation (ILP): comparison of fiber tips
Author(s): Xiaomei Shi; Abraham H. Dachman
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Paper Abstract

We sought to study the effect of fiber tip modification on the size and shape of lesions created by the interstitial application of a 805 nm diode laser. In order to clarify conflicting results of other authors, we performed a large number of burns in order to obtain definitive statistically significant data. The plastic cladding and jacket were removed from the distal 5 mm of a hard polymer clad fused silica fiber of 600 micrometers . Three tip modifications were compared: a bare cut tip with and without precharring and a conical diffused tip. Continuous wave laser radiation was applied over a 1.0 to 2.5 watt range at 0.5 watt increments for a duration of 5, 10, and 15 minutes in vitro using fresh pig liver. The liver burns were thinly cut in cross-sections, and photographed. The sizes of the resultant cavity and lesion were measured and analyzed for statistical significance.

Paper Details

Date Published: 22 May 1995
PDF: 5 pages
Proc. SPIE 2391, Laser-Tissue Interaction VI, (22 May 1995); doi: 10.1117/12.209920
Show Author Affiliations
Xiaomei Shi, Univ. of Chicago (United States)
Abraham H. Dachman, Univ. of Chicago (United States)


Published in SPIE Proceedings Vol. 2391:
Laser-Tissue Interaction VI
Steven L. Jacques, Editor(s)

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