The essentials of physics of extracorporeal shock wave lithotripsy
Authors:
Kamil Fógel
Authors‘ workplace:
Urologická klinika 1. LF UK a VFN v Praze
Published in:
Ces Urol 2010; 14(2): 73-80
Category:
Review article
Overview
Extracorporeal Shock Wave Lithotripsy (ESWL) utilizes a specific acoustic characteristics of a shock wave, which enables fragmentation of urinary stone. Shock wave is a acoustic wave generated by the shock wave source with high energy and variable frequency. Stone disintegration is caused by interaction of the shock between two acoustically different mediums. The main mechanisms of shock wave action is spallation, squeezing, acustic cavitation and compression. This method was invented and introduced to the clinical practice in the early 1980s in Germany and from that time this method has earned it’s position as a firstline treatment option in nearly 90% of patients with urinary stones.
Key words:
extracorporeal shock wave lithotripsy, mechanism of shock wave action, physics, shock wave.
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Labels
Paediatric urologist Nephrology UrologyArticle was published in
Czech Urology
2010 Issue 2
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