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Proceedings Paper

Application of hyperspectral fluorescence lifetime imaging to tissue autofluorescence: arthritis
Author(s): 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
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Paper 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.

Paper Details

Date Published: 7 October 2005
PDF: 6 pages
Proc. SPIE 5862, Diagnostic Optical Spectroscopy in Biomedicine III, 58620T (7 October 2005); doi: 10.1117/12.633034
Show Author Affiliations
C. B. Talbot, Imperial College London (United Kingdom)
R. K. P. Benninger, Imperial College London (United Kingdom)
P. de Beule, Imperial College London (United Kingdom)
J. Requejo-Isidro, Imperial College London (United Kingdom)
D. S. Elson, Imperial College London (United Kingdom)
C. Dunsby, Imperial College London (United Kingdom)
I. Munro, Imperial College London (United Kingdom)
M. A. Neil, Imperial College London (United Kingdom)
A. Sandison, Imperial College London (United Kingdom)
N. Sofat, Imperial College London (United Kingdom)
H. Nagase, Imperial College London (United Kingdom)
P. M. W. French, Imperial College London (United Kingdom)
M. J. Lever, Imperial College London (United Kingdom)


Published in SPIE Proceedings Vol. 5862:
Diagnostic Optical Spectroscopy in Biomedicine III
Mary-Ann Mycek, Editor(s)

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