Results 161 to 170 of about 1,948,694 (227)

Laser Lithotripsy: The Importance of Peak Power and Pulse Modulation.

European Urology Focus, 2021
Despite the worldwide spread of Ho:YAG lasers in urology departments, the physical principles behind their functioning may still seem obscure to many urologists. Moreover, a new laser source, the thulium fiber laser (TFL), was recently approved for stone
E. Ventimiglia, L. Villa, S. Doizi, A. Briganti, S. Proietti, G. Giusti, F. Montorsi, E. Montanari, O. Traxer, A. Salonia   +9 more
semanticscholar   +1 more source

Laser Lithotripsy and Cyanide

Journal of Endourology, 2000
Holmium:YAG lithotripsy of uric acid calculi produces cyanide. The laser and stone parameters required to produce cyanide are poorly defined. In this study, we tested the hypotheses that cyanide production: (1) varies with holmium:YAG power settings; (2) varies among holmium:YAG, pulsed-dye, and alexandrite lasers; and (3) occurs during holmium:YAG ...
N S, Corbin, J M, Teichman, T, Nguyen, R D, Glickman, L, Rihbany, M S, Pearle, J T, Bishoff   +6 more
openaire   +2 more sources

Intracorporeal Lithotripsy With the Holmium:YAG Laser

Journal of Urology, 1995
Preliminary evaluations of the holmium:YAG laser have demonstrated a variety of potential urological applications, including ablation of soft tissue lesions as well as stone fragmentation. We present our experience with the holmium:YAG laser for intracorporeal lithotripsy of urinary calculi.During a 24-month period 75 patients underwent 79 laser ...
H A, Razvi, J D, Denstedt, S S, Chun, J L, Sales   +3 more
openaire   +2 more sources

Computer Vision Enabled Segmentation of Kidney Stones During Ureteroscopy and Laser Lithotripsy

Journal of endourology, 2022
Objective: To evaluate the performance of computer vision models for automated kidney stone segmentation during flexible ureteroscopy and laser lithotripsy.
Shaan A. Setia, Zachary A. Stoebner, C. Floyd, Daiwei Lu, I. Oguz, Nicholas L. Kavoussi   +5 more
semanticscholar   +1 more source

Comparative effectiveness of high-power holmium laser lithotripsy for pediatric patients with kidney and ureteral stones.

Journal of Pediatric Urology, 2022
BACKGROUND The comparative effectiveness of high-power laser technology for kidney stone surgery in pediatric patients is poorly understood. We compared outcomes for the 120 W Holmium:yttrium-aluminum-garnet (Ho:YAG) laser with MOSES technology to 30 W ...
W. Harris, Lusha Cao, G. Tasian
semanticscholar   +1 more source

Electrohydraulic Lithotripsy and Laser Lithotripsy

2017
Mechanical lithotripsy is usually employed for the fragmentation of large common bile duct (CBD) stones. However, refractory CBD stones, stones larger than 2 cm in size, those firmly impacted, those located above a bile duct stricture, and those located in the intrahepatic bile duct, or cases of Mirizzi syndrome are difficult to treat.
Koji Uno, Kenjiro Yasuda
openaire   +1 more source

Lasers for lithotripsy

SPIE Proceedings, 2008
Laser-assisted lithotripsy is a minimally-invasive method for destroying or disruption of human urinary stones. For this purpose laser light delivered through the flexible sealed waveguide or fibre could be utilized. On the output end of the delivery system the laser ligth is focused onto the surface of urinary stones with various size and various ...
Petr Koranda, Michal Nemec, Helena Jelinková, Jan Pokorny, Oto Kőhler, Pavel Drlík, Mitsunobu Miyagi, Katsumasa Iwai, Yi-Wei Shi, Yuji Matsuura   +9 more
openaire   +1 more source

Intrarenal Fluid Temperature During Laser Lithotripsy: A Mini Review by the European Association of Urology Endourology Section.

European Urology Focus
Laser lithotripsy involves thermal risks due to heat generated in the surrounding fluid. The concept of thermal dose, which accounts for both temperature and exposure duration, provides a more nuanced understanding of tissue tolerance than fixed ...
F. Pauchard, M. Corrales, Davide Perri, D. Robesti, A. Tsaturyan, B. Somani, I. Kartalas Goumas, O. Traxer, E. Ventimiglia   +8 more
semanticscholar   +1 more source

Biliary Laser Lithotripsy

Surgical Clinics of North America, 1992
Laser lithotripsy is an excellent method of fragmenting those biliary stones that cannot be removed easily by less technically advanced methods such as basket extraction. The energy can be delivered through fine flexible fibers, around 200 to 320 microns in diameter, that can be passed through the channels of a variety of small endoscopes.
openaire   +2 more sources

Intracorporeal lithotripsy with the Alexandrite laser

Lasers in Surgery and Medicine, 1997
The objective of this study was to evaluate clinical use of an Alexandrite laser lithotripter for intracorporeal lithotripsy of urinary calculi.We prospectively evaluated a flash lamp pumped, Q-switched Alexandrite solid-state laser for use in conjunction with ureteroscopy (30 cases) or percutaneous nephrolithotripsy (2 cases).
J D, Denstedt, S S, Chun, M D, Miller, P M, Eberwein   +3 more
openaire   +2 more sources