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Proceedings Paper

Influence of pulsewidth on the efficiency of pulsed dye laser (PDL) treatment of port-wine stains
Author(s): Hartmut Strempel; Guy Klein
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Paper Abstract

In order to destroy selectively cutaneous vessels with a dye laser, the exposition time has to be shorter than the thermal relaxation time of the target tissue. Within this frame of time longer pulses are found to be more efficient in bleaching portwine stains than shorter ones. Two pulses of different length but with identical power density are compared in their therapeutical efficiency by means of reflectometry. There were no relevant differences neither in terms of lightness, redness nor in yellowness. If the increment and the irradiance is the same, a pulse stretching form 200 microsecond(s) to 260 microsecond(s) does not influence decisively the therapeutical effect in portwine stains.

Paper Details

Date Published: 3 December 1996
PDF: 4 pages
Proc. SPIE 2922, Laser Applications in Medicine and Dentistry, (3 December 1996); doi: 10.1117/12.260684
Show Author Affiliations
Hartmut Strempel, Lasercenter Marburg (Germany)
Guy Klein, Lasercenter Marburg (Germany)

Published in SPIE Proceedings Vol. 2922:
Laser Applications in Medicine and Dentistry
Gregory B. Altshuler; Fausto Chiesa; Herbert J. Geschwind M.D.; Raimund Hibst; Neville Krasner M.D.; Frederic Laffitte; Giulio Maira; Reinhard Neumann; Roberto Pini; Hans-Dieter Reidenbach; Andre Roggan; Montserrat Serra I Mila, Editor(s)

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