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Proceedings Paper

In vivo light dosimetry during superficial photodynamic therapy
Author(s): Emma J. Hudson; Mark R. Stringer; F. Cairnduff; Michael A. Smith
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Paper Abstract

The depth distribution of 630 nm laser light has been measured for ten patients during the photodynamic therapy of skin lesions by the application of topical 5-aminolaevulinic acid followed by surface illumination. Results show that the light distribution can be described by the diffusion theory. The values of effective attenuation coefficient obtained for each lesion are in close agreement (0.352 mm-1 +/- 8%) but the K value, used to describe sub-surface fluence build-up, varies between 0.12 and 8.23, although similar values are obtained for the same type of lesion.

Paper Details

Date Published: 1 March 1994
PDF: 4 pages
Proc. SPIE 2078, Photodynamic Therapy of Cancer, (1 March 1994); doi: 10.1117/12.168712
Show Author Affiliations
Emma J. Hudson, Univ. of Leeds/Leeds General Infirmary (United Kingdom)
Mark R. Stringer, Univ. of Leeds/Leeds General Infirmary (United Kingdom)
F. Cairnduff, Cookridge Hospital (United Kingdom)
Michael A. Smith, Univ. of Leeds/Leeds General Infirmary (United Kingdom)


Published in SPIE Proceedings Vol. 2078:
Photodynamic Therapy of Cancer

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