Spectroscopic imaging for detection of ischemic injury in rat kidneys by use of changes in intrinsic optical properties

Andromachi P. Michalopoulou, Jason T. Fitzgerald, Christoph Troppmann, Stavros G. Demos

Research output: Contribution to journalArticle

13 Scopus citations

Abstract

It is currently impossible to consistently predict kidney graft viability and function before and after transplantation. We explored optical spectroscopy to assess the degree of ischemic damage in kidney tissue. Tunable UV laser excitation was used to record autofluorescence images, at different spectral ranges, of injured and contralateral control rat kidneys to reveal the excitation conditions that offered optimal contrast. Autofluorescence and near-infrared cross-polarized light-scattering imaging were both used to monitor changes in intensity and spectral characteristics, as a function of exposure time to ischemic injury. These two modalities provided different temporal behaviors, arguably arising from two different mechanisms providing direct correlation of intrinsic optical signatures to ischemic injury time.

Original languageEnglish (US)
Pages (from-to)2024-2032
Number of pages9
JournalApplied Optics
Volume44
Issue number11
DOIs
StatePublished - Apr 10 2005

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Fingerprint Dive into the research topics of 'Spectroscopic imaging for detection of ischemic injury in rat kidneys by use of changes in intrinsic optical properties'. Together they form a unique fingerprint.

  • Cite this