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Optical coherence tomography monitoring of laser ablation processes in ENT tissues

M. PETRUS1,* , E.M. CARSTEA2, D. C. A. DUTU1, D. C. DUMITRAS1

Affiliation

  1. Department of Lasers, National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor St., PO Box MG-36, 077125, Bucharest, Romania
  2. National Institute of R&D Optoelectronics INOE 2000 409 Atomistilor St., PO Box MG-5, 077125 Bucharest, Romania

Abstract

Laser ablation surgery diminishes the collateral symptoms and the recovery time. In this study our aims were to characterize tissue destruction after laser-ablation of the ENT (Ear, Nose and Throat) soft tissues. We compare the results obtained by Optical Coherence Tomography (OCT) method with conventional histology in order to evaluate in vitro the laser injury of the porcine larynges. For irradiation we have used the CO2 laser surgical system. By adequate choice of the laser parameters, we managed to obtain a negligible damaged of the processed tissue due to the thermal effects. Using the heat transfer equation we have obtained a good agreement between the experimental and simulation data for the temperature distribution induced by different laser power in soft tissue..

Keywords

laser ablation, Ear Nose Throat (ENT), Optical Coherence Tomography, CO2 laser.

Submitted at: June 20, 2011
Accepted at: July 25, 2011

Citation

M. PETRUS, E.M. CARSTEA, D. C. A. DUTU, D. C. DUMITRAS, Optical coherence tomography monitoring of laser ablation processes in ENT tissues, Journal of Optoelectronics and Advanced Materials Vol. 13, Iss. 7, pp. 776-780 (2011)