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7 March 2022 Effect of air trap in balloon on circumferential laser ablation of urethral stenosis
Seonghee Lim, Van Gia Truong
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Proceedings Volume PC11958, Optical Interactions with Tissue and Cells XXXIII; and Advanced Photonics in Urology; PC119580I (2022) https://doi.org/10.1117/12.2612144
Event: SPIE BiOS, 2022, San Francisco, California, United States
Abstract
A balloon-integrated diffusing applicator has been developed to treat urethral stenosis. To deliver uniform light, the balloon was inflated by inserting water. However, the air trap in the balloon can cause non-uniform ablation in the tissue due to different thermal boundary conditions between air and water. The current study aims to evaluate optical and thermal effects of the air trap on cylindrical laser treatment of urethral stenosis. Although a siginificant decrease of the air volume in the balloon, at least two deflations were required to entail uniform coagulation in a tubular structure and to avoid the unpredictable optical/thermal effects from the air trap.
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Seonghee Lim and Van Gia Truong "Effect of air trap in balloon on circumferential laser ablation of urethral stenosis", Proc. SPIE PC11958, Optical Interactions with Tissue and Cells XXXIII; and Advanced Photonics in Urology, PC119580I (7 March 2022); https://doi.org/10.1117/12.2612144
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KEYWORDS
Laser ablation
Laser tissue interaction
Liver
Tissue optics
Laser therapeutics
Tissues
Optical fabrication
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