Publication:
Holmium:YAG vs thulium fiber laser dusting of calcium oxalate monohydrate stones

Дата
2019
Авторы
Hardy, L. A.
Fried, N. M.
Vinnichenko, V.
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Научные группы
Организационные подразделения
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Аннотация
© 2019 SPIE.Recent advances in Holmium and Thulium fiber lasers (TFL) enable operation at similar parameters for comparison. A 'dusting' lithotripsy mode with low energy per pulse (0.2-0.4 J) and high pulse rates (50-80 Hz), is preferred to produce smaller residual stone fragments for natural passage through the urinary tract. Holmium and TFL were compared for dusting using three groups, G1: 0.2 J/50 Hz/10 W; G2: 0.2 J/80 Hz/16 W; and G3: 0.4 J/80 Hz/32 W. A setup with 1 x 1 cm cuvette and 1.0 mm sieve was used with total laser operation time limited to ≤ 5 min. Calcium oxalate monohydrate (COM) stones with average initial stone mass of 216-297 mg between groups were used. Holmium ablation rates were lower than for TFL at all settings (G1: 0.3 ± 0.2 vs. 0.8 ± 0.2; G2: 0.6 ± 0.1 vs. 1.0 ± 0.4; G3: 0.7 ± 0.2 vs. 1.3 ± 0.9 mg/s). TFL also produced a greater percentage by mass of stone dust (< 0.5 mm) than Holmium. For all three settings, 1/15 (7%) stones treated with Holmium were fragmented in ≤ 5 min vs. 9/15 (60%) stones treated with TFL. These preliminary studies demonstrate that TFL is a viable laser for stone dusting, producing higher stone ablation rates and smaller stone fragments than Holmium laser.
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Hardy, L. A. Holmium:YAG vs thulium fiber laser dusting of calcium oxalate monohydrate stones / Hardy, L.A., Fried, N.M., Vinnichenko, V. // Progress in Biomedical Optics and Imaging - Proceedings of SPIE. - 2019. - 10852. - 10.1117/12.2506783
URI
https://www.doi.org/10.1117/12.2506783
 https://www.scopus.com/record/display.uri?eid=2-s2.0-85066783180&origin=resultslist
 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000475934300010
 https://openrepository.mephi.ru/handle/123456789/18223
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