@inproceedings{41ef979ba80b4ce681cb1bb907020b0f,
title = "Determination of the ablation efficiencies of the laser irradiated tissues via rate of temperature change over time",
abstract = "The aim of this study was to investigate the relation between ablation efficiency and temperature increase during laser ablation by 1940-nm Tm:fiber laser. The thermal effects of the Tm:fiber laser on the brain tissue was also investigated. The laser beam (200-1000 mW) was delivered from a distance of 0.5 mm to cortical and subcortical regions of the ex vivo ovine brain tissue samples via 400 μm optical fiber. A total of 560 brain samples were irradiated at different settings in continuous-mode or pulsed-mode. In continuous-mode and pulsed-modulated-mode doses were changed with exposure time and on-off cycles respectively, in order to achieve the tissue to absorb the same energy. During lasing temperature changes of the irradiated tissue were recorded by a thermoprobe (thermoprobe is a system which an optical fiber was embedded into a thermocouple). The radiuses of ablation and coagulation zones were measured under microscope. The ablation efficiencies (100xablation/coagulation radius) and rates of temperature change were calculated. A strong correlation between the ablation efficiency and rate of temperature change was presented.",
keywords = "fiber laser, oral surgery, thulium",
author = "Burcu Tun{\c c} and Murat G{\"u}lsoy",
year = "2013",
doi = "10.1117/12.2001512",
language = "English",
isbn = "9780819493538",
series = "Progress in Biomedical Optics and Imaging - Proceedings of SPIE",
booktitle = "Energy-Based Treatment of Tissue and Assessment VII",
note = "2013 SPIE Conference: Energy-Based Treatment of Tissue and Assessment VII ; Conference date: 03-02-2013 Through 04-02-2013",
}