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http://dx.doi.org/10.9718/JBER.2014.35.3.62

Quantitative Evaluation on Laser Performance for Endovenous Photocoagulation  

Ahn, Minwoo (Department of Biomedical Engineering, Pukyong National University)
Nguyen, Van Phuc (Interdisciplinary Program of Marine-Bio, Electrical & Mechanical Engineering, Pukyong National University)
Oh, Junghwan (Department of Biomedical Engineering, Pukyong National University)
Kang, Hyun Wook (Department of Biomedical Engineering, Pukyong National University)
Publication Information
Journal of Biomedical Engineering Research / v.35, no.3, 2014 , pp. 62-67 More about this Journal
Abstract
The purpose of the study was to identify the effect of laser parameters on photocoagulation to maximize safety and efficacy during varicose vein treatment. CW and pulsed modes at 1470 nm were initially compared as a function of power on bovine liver tissue. In the pulsed mode, various parameters including repetition rate, duty cycle, and irradiation time were compared to evaluate tissue response during thermal treatment. The results demonstrated that CW and pulsed modes yielded almost similar coagulation development possibly due to shorter irradiation time of 5 sec. Regardless of laser mode, both repetition rate and duty cycle presented constant coagulation rate whereas longer irradiation time facilitated coagulation process.
Keywords
coagulation; laser parameters; varicose vein; 1470 nm;
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