Stone ablation rates using innovative pulse modulation technology: Vapor tunnel, virtual basket, and bubble blast. An in vitro experimental study

被引：28

作者：

Martinez, Begona Ballesta ^{[1
]}

Peteinaris, Angelis ^{[1
]}

Tsaturyan, Arman ^{[1
]}

Natsos, Anastasios ^{[1
]}

Koukiou, Georgia ^{[2
]}

Vagionis, Athanasios ^{[1
]}

Pagonis, Konstantinos ^{[1
]}

Adaibat, Mohamed ^{[1
]}

Liourdi, Despoina ^{[3
]}

Vrettos, Theofanis ^{[4
]}

Liatsikos, Evangelos ^{[1
,5
,6
]}

Kallidonis, Panagiotis ^{[1
]}

机构：

[1] Univ Patras, Dept Urol, Patras, Greece

[2] Univ Patras, Phys Dept, Elect Lab, Patras, Greece

[3] Aghios Andreas Gen Hosp, Dept Internal Med, Patras, Greece

[4] Univ Patras, Dept Anesthesiol & ICU, Patras, Greece

[5] Med Univ Vienna, Dept Urol, Vienna, Austria

[6] Sechenov Univ, Inst Urol & Reprod Med, Moscow, Russia

来源：

LASERS IN SURGERY AND MEDICINE | 2022年 / 54卷 / 04期

关键词：

high power laser; laser lasers; urinary stones; LASER LITHOTRIPSY; HOLMIUM LASER; SETTINGS;

D O I：

10.1002/lsm.23503

中图分类号：

R75 [皮肤病学与性病学];

学科分类号：

100206 ;

摘要：

Introduction and Objectives Virtual Basket(TM), Bubble Blast(TM), and Vapor Tunnel(TM) are three laser pulse modulation technologies that modify the holmium: yttrium-aluminum-garnet (Ho:YAG) laser pulse transmission through the creation of bubbles emerging from the fiber tip with different effects on the target stone. The primary outcome of the current study was to test the stone ablation rates for the different pulse modulation modes, Virtual Basket, Bubble Blast, and Vapor Tunnel, using different power, energy, and frequency settings. Materials and Methods Quanta Cyber: Ho 150 W-TM, a 365 mu m Precision(TM) fiber, and hard and soft phantom BegoStones(TM) were used in an in vitro experimental configuration in a saline bath. In the Virtual Basket mode, the combinations of power, energy and frequency were tested; 10 W = 0.5 J x 20 Hz, 10 W = 0.5 J x 20 Hz, 60 W = 1 J x 60 Hz and 60 W = 2 J x 30 Hz. In the Bubble Blast mode, the combinations, 12 W = 1.2J x 10 Hz, 60 W = 1.2J x 50 Hz and 60 W = 2 J x 30 Hz, were tested. Similarly, the combination of 10 W = 0.5 J x 20 Hz was tested with Vapor Tunnel mode. High-speed camera captures of the bubble formation and regular photographs of the fragmentation pattern were also taken for each mode. Results High power lithotripsy was faster and related to higher ablation rates. The Virtual Basket, Bubble Blast, and Vapor Tunnel modalities showed different ablation rates for the same energy and frequency settings. For hard stones, there was an improvement in the ablation rate using 60 W = 2 J x 30 Hz compared with 60 W = 1 J x 60 Hz and 60 W = 1.2 J x 50 Hz. The highest ablation rates were recorded using the Virtual Basket mode with the high-power settings of 2 J of energy and 30 Hz of frequency. Conclusions The Virtual Basket(TM) pulse-modulation technology was related to the highest ablation rates for both hard and soft stones, compared to the Bubble Blas(TM) and the Vapor Tunne(TM) technologies in high-power and low-power lithotripsy respectively. For the same high power settings, higher energy seems to provide higher ablation rates.

引用

页码：580 / 587

页数：8

共 21 条

[1] Watch Your Distance: The Role of Laser Fiber Working Distance on Fragmentation When Altering Pulse Width or Modulation [J].