Real time assessment of RF cardiac tissue ablation with optical spectroscopy

Stavros G. Demos, Shiva Sharareh

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


An optical spectroscopy approach is demonstrated allowing for critical parameters during RF ablation of cardiac tissue to be evaluated in real time. The method is based on incorporating in a typical ablation catheter transmitting and receiving fibers that terminate at the tip of the catheter. By analyzing the spectral characteristics of the NIR diffusely reflected light, information is obtained on such parameters as, contact of catheter with the tissue, lesion formation, depth of penetration of the lesion, formation of char and coagulum during the ablation.

Original languageEnglish (US)
Pages (from-to)15286-15296
Number of pages11
JournalOptics Express
Issue number19
StatePublished - Sep 15 2008

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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