Application of hyperspectral fluorescence lifetime imaging to tissue autofluorescence: arthritis

C. B. Talbot; R. K. P. Benninger; P. de Beule; J. Requejo-Isidro; D. S. Elson; C. Dunsby; I. Munro; M. A. Neil; A. Sandison; N. Sofat; H. Nagase; P. M. W. French; M. J. Lever

doi:10.1117/12.633034

7 October 2005 Application of hyperspectral fluorescence lifetime imaging to tissue autofluorescence: arthritis

C. B. Talbot, R. K. P. Benninger, P. de Beule, J. Requejo-Isidro, D. S. Elson, C. Dunsby, I. Munro, M. A. Neil, A. Sandison, N. Sofat, H. Nagase, P. M. W. French, M. J. Lever

Author Affiliations +

Proceedings Volume 5862, Diagnostic Optical Spectroscopy in Biomedicine III; 58620T (2005) https://doi.org/10.1117/12.633034
Event: European Conferences on Biomedical Optics 2005, 2005, Munich, Germany

Abstract

Tissue contains many natural fluorophores and therefore by exploiting autofluorescence, we can obtain information from tissue with less interference than conventional histological techniques. However, conventional intensity imaging is prone to artifacts since it is an absolute measurement. Fluorescence lifetime and spectral measurements are relative measurements and therefore allow for better measurements. We have applied FLIM and hyperspectral FLIM to the study of articular cartilage and its disease arthritis. We have analyzed normal human articular cartilage and cartilage which was in the early stages of disease. In this case, it was found that FLIM was able to detect changes in the diseased tissue that were not detectable with the conventional diagnosis. Specifically, the fluorescence lifetimes (FL) of the cells were different between the two samples. We have also applied hyperspectral FLIM to degraded cartilage through treatment with interleukin-1. In this case, it was found that there was a shift in the emission spectrum with treatment and that the lifetime had also increased. We also showed that there was greater contrast between the cells and the extracellular matrix (ECM) at longer wavelengths.

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C. B. Talbot, R. K. P. Benninger, P. de Beule, J. Requejo-Isidro, D. S. Elson, C. Dunsby, I. Munro, M. A. Neil, A. Sandison, N. Sofat, H. Nagase, P. M. W. French, and M. J. Lever "Application of hyperspectral fluorescence lifetime imaging to tissue autofluorescence: arthritis", Proc. SPIE 5862, Diagnostic Optical Spectroscopy in Biomedicine III, 58620T (7 October 2005); https://doi.org/10.1117/12.633034

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