PD26-07 HOW DO ULTRASOUND WAVES CAUSE STONE FRACTURE IN BURST WAVE LITHOTRIPSY?
نویسندگان
چکیده
منابع مشابه
[Stone burden on extracorporeal shock wave lithotripsy].
Based on the 89 stones treated by ESWL therapy alone, the factors which influence the number of ESWL shots were analyzed. Stone volume was calculated by summing up the value "length x short axis" for each stone. The value correlated well with the number of shots needed to disintegrate the stone (p less than 0.01). The stones below the pelvis-ureteral junction needed twice shots compared with st...
متن کاملHow do stone attenuation and skin-to-stone distance in computed tomography influence the performance of shock wave lithotripsy in ureteral stone disease?
BACKGROUND Shock wave lithotripsy (SWL) is a noninvasive, safe, and efficient treatment option for ureteral stones. Depending on stone location and size, the overall stone-free rate (SFR) varies significantly. Failure of stone disintegration results in unnecessary exposure to shock waves and radiation and requires alternative treatment procedures, which increases medical costs. It is therefore ...
متن کاملThe use of resonant scattering to identify stone fracture in shock wave lithotripsy.
There is currently little feedback as to whether kidney stones have fractured during shock wave lithotripsy. Resonant scattering of the lithotripter shock wave was used here to differentiate intact and fractured stone models in water. Scattering, including reflection and radiation due to reverberation from within the stone, was calculated numerically with linear elasticity theory and agreed wel...
متن کاملUltrasound Underwater Transducer for Extracorporeal Shock Wave Lithotripsy (eswl)
This paper presents an ultrasound piezoceramic transducer, centred into an extracorporeal shock wave lithotriptor system. The electromagnetic acoustic source lithotriptor initiates the incident shock waves into the water, and the ultrasound transducer improves the caviational effects of the bubbles. The piezoelectric transducer is powered by a Function/Pulse Generator type IWATSU SG-4511, and c...
متن کاملImprovement of stone comminution by slow delivery rate of shock waves in extracorporeal lithotripsy.
AIM The aim of this study was to investigate the effect of delivery rate of shockwaves (SW) on stone comminution and treatment outcomes in patients with renal and ureteral stones. METHODS Patients with radio-opaque stones in the upper urinary tract that were treated by extracorporeal shock wave lithotripsy (ESWL) were divided into two groups according to delivery rate (120 or 60 SW/min). The ...
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ژورنال
عنوان ژورنال: Journal of Urology
سال: 2019
ISSN: 0022-5347,1527-3792
DOI: 10.1097/01.ju.0000555895.07534.44