In-vivo remission spectroscopy on tattoos and topically applied photosensitizers in man

Karsten Koenig; Gerd C. Beck; Wolf-Henning Boehncke; Roland Kaufmann; Raimund Hibst

doi:10.1117/12.169141

15 February 1994 In-vivo remission spectroscopy on tattoos and topically applied photosensitizers in man

Karsten Koenig, Gerd C. Beck, Wolf-Henning Boehncke, Roland Kaufmann, Raimund Hibst

Proceedings Volume 2086, Medical Applications of Lasers; (1994) https://doi.org/10.1117/12.169141
Event: Europto Biomedical Optics '93, 1993, Budapest, Hungary

Abstract

In-vivo remission spectra of the human skin in the spectral region of 400 nm to 800 nm were recorded using a xenon lamp as an excitation source, a fiberoptical sensor combined with a polychromator, and a multichannel analyzer. The remission of amateur tattoos before and after laser treatment (Q-switched Nd:YAG) was measured and the degree of blanching determined. It was found that the process of blanching proceeds partly reversible. In another study, the time-dependent remission of human skin after topical administration of the photosensitizer Methylene Blue was studied. The additional application of the ceratolytic agent urea promotes the penetration of the thiazine dye. The experimental data were analyzed by the Kubelka Munk theory.

Citation Download Citation

Karsten Koenig, Gerd C. Beck, Wolf-Henning Boehncke, Roland Kaufmann, and Raimund Hibst "In-vivo remission spectroscopy on tattoos and topically applied photosensitizers in man", Proc. SPIE 2086, Medical Applications of Lasers, (15 February 1994); https://doi.org/10.1117/12.169141

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