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5 March 2021 The optimal dusting mode for Ho:YAG laser lithotripsy
Jian J. Zhang, Dongyul Chai, Jason R. Xuan, Aditi Ray, Thomas Hasenberg, Timothy Harrah
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Proceedings Volume 11619, Advanced Photonics in Urology; 116190E (2021) https://doi.org/10.1117/12.2578984
Event: SPIE BiOS, 2021, Online Only
Abstract
Ureteroscopic stone dusting utilizing a high power laser system has become more popular in recent years due to the production of finer debris/remains, lower retropulsion, and shorter operation time (potential to avoid the routine use of post-operative stenting and the use of ureteral access sheaths (UAS)). Typical dusting settings are lower pulse energy (as low as 0.2 J) with higher frequency (up to 80 Hz). This study investigates the best dusting mode to produce a high ablation rate and low retropulsion. The objective of the study was to evaluate the performance of a concept optimal dusting mode. In vitro investigations of Ho:YAG laser-induced stone ablation and retropulsion were performed with a benchtop model in a highly reproducible manner using a hands-free setup and measuring the effects of multiple pulses. A systematic comparison of the performance (ablation and retropulsion) of the concept optimal dusting mode against a reference laser dusting mode was conducted. Within this benchtop test model, the optimal dusting mode had a relatively fast ablation rate while keeping retropulsion low.
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Jian J. Zhang, Dongyul Chai, Jason R. Xuan, Aditi Ray, Thomas Hasenberg, and Timothy Harrah "The optimal dusting mode for Ho:YAG laser lithotripsy", Proc. SPIE 11619, Advanced Photonics in Urology, 116190E (5 March 2021); https://doi.org/10.1117/12.2578984
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KEYWORDS
Laser ablation
Laser lithotripsy
Laser systems engineering
High power lasers
In vitro testing
Performance modeling
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