Evaluation of a fiber-optic based pulsed laser system for fluorescence spectroscopy

Research output: Chapter in Book/Report/Conference proceedingsConference proceedingpeer-review

Abstract

A fiber optic based continous wave laser setup has been developed to record the 5-aminolevulinic (5-ALA) induced Protoporfyrin IX (PpIX) fluorescence signals from cerebral gliomas. To reduce the energy delivered to the tissue as well as suppression of the ambient lamp artifact from the recorded spectra, a pulsed laser setup has been developed and evaluated. This setup has been calibrated and first evaluations were performed on the 5-ALA treated skin showing PpIX fluorescence peaks from the ALA treated skin at 635 and 704 nm wavelengths. The system controls laser pulses through a computer interface and labview software package. Pulses as short as 50 ms over a period time of 500 ms are generated and optimally detected. The results from primary measurements on skin show an effective suppression of room fluorescent lamp artifact from the recorded spectra.

Original languageEnglish
Title of host publication14th Nordic-Baltic Conference on Biomedical Engineering and Medical Physics, NBC 2008
PublisherSpringer Verlag
Pages363-366
Number of pages4
ISBN (Print)9783540693666
DOIs
Publication statusPublished - 2008
Externally publishedYes

Publication series

NameIFMBE Proceedings
Volume20 IFMBE
ISSN (Print)1680-0737

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Keywords

  • 5-aminolevulinic acid induced fluorescence
  • Fluorescence spectroscopy
  • Glioma resection
  • Intraoperative optical guide
  • Pulsed laser modulation

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