Latest results of 5-ALA-based fluorescence diagnosis and other medical disciplines

Reinhold Baumgartner

doi:10.1117/12.339124

3 February 1999 Latest results of 5-ALA-based fluorescence diagnosis and other medical disciplines

Reinhold Baumgartner

Proceedings Volume 3563, Photochemotherapy of Cancer and Other Diseases; (1999) https://doi.org/10.1117/12.339124
Event: BiOS Europe '98, 1998, Stockholm, Sweden

Abstract

Preclinical and clinical studies on 5-aminolevulinic acid (5- ALA) induced Protoporphyrin IX (PPIX) are performed in various departments now following promising clinical results for the detection of bladder cancer in urology. This paper provides an overview on the progress of 5-ALA assisted fluorescence diagnosis in urology, pulmonology, neurosurgery, gynecology and ENT coordinated by the Laser Research Laboratory of the Ludwig-Maximilians-University in Munich. 5-ALA can be applied either topically or systematically to induce an intracellular accumulation of fluorescing PPIX. With appropriate dosage of 5-ALA, malignant tissue can be stained selectively, and irradiation with violet light excites a bright red fluorescence of the tumor visible with naked eyes. Optical properties of the tissue tend to hamper the precise identification and demarcation of suspect areas in fluorescence images. Multicolor remission and fluorescence imaging, therefore, should improve tumor localization in future.

Citation Download Citation

Reinhold Baumgartner "Latest results of 5-ALA-based fluorescence diagnosis and other medical disciplines", Proc. SPIE 3563, Photochemotherapy of Cancer and Other Diseases, (3 February 1999); https://doi.org/10.1117/12.339124

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