The temporal and spatial dynamics of cavitation bubble cloud growth and collapse in extracorporeal shock wave lithotripsy (ESWL) is studied experimentally. The first objective is obtaining reproducible cloud patterns experimentally and comparing them with FDTD-calculations. Second, we describe a method to modify the cavitation pattern by timing two consecutive pressure waves at variable delays. It is found that the spatial and temporal dynamics of the cavitation bubble can be varied in large ranges. The ability to control cavitation dynamics allows discussing strategies for improvement of medical and biological applications of shock waves such as cell membrane poration and stone fragmentation.
|Journal||Journal of physics: Conference series|
|Publication status||Published - 2004|
|Event||Advanced Metrology for Ultrasound in Medicine, AMUM 2004 - National Physical Laboratory, Teddington, United Kingdom|
Duration: 27 Apr 2004 → 28 Apr 2004