Interactions of Cavitation Bubbles Observed by High-Speed Imaging in Shock Wave Lithotripsy

2006 ◽  
Author(s):  
Yuri A. Pishchalnikov
Keyword(s):  
Shock Wave ◽  
High Speed ◽  
Shock Wave Lithotripsy ◽  
High Speed Imaging ◽  
Cavitation Bubbles

Influence of Pulse Repetition Rate on Cavitation at the Surface of an Object Targeted by Lithotripter Shock Waves

2007 ◽  
Author(s):  
Yuri A. Pishchalnikov ◽  
Mark M. Kaehr ◽  
James A. McAteer
Keyword(s):  
Shock Wave ◽  
High Speed ◽  
Shock Wave Lithotripsy ◽  
Bubble Dynamics ◽  
Pulse Repetition Frequency ◽  
Pulse Repetition ◽  
Bubble Collapse ◽  
High Speed Imaging ◽  
Bubble Density ◽  
Induced Stresses

Stone breakage in shock wave lithotripsy is improved by slowing the rate of shock wave (SW) delivery. Previous studies have shown that increased cavitation at fast pulse repetition frequency (PRF) reduces the tensile phase of the SW, while the leading positive wave is virtually unaffected. Since the tensile component of the SW drives cavitation, and since cavitation at the stone contributes to breakage, it seems likely that increased cavitation along the path to the stone affects cavitation at the stone. Here we present preliminary data suggesting that PRF influences bubble dynamics at the stone. High-speed imaging showed that as PRF increased, bubble density of cavitation clouds increased, and the size of individual bubbles decreased. A new method to measure stresses generated by cavitation was used to show that locally induced stresses from bubble collapse can be greater than the incident SW, and were higher at 0.5Hz than at 2Hz PRF.

Unsteady shock wave diagnostics with high-speed imaging

2008 ◽  
Author(s):  
B. W. Skews ◽  
H. Kleine ◽  
D. MacLucas ◽  
K. Takehara ◽  
H. Teranishi ◽  
...  
Keyword(s):  
Shock Wave ◽  
High Speed ◽  
High Speed Imaging

CONTROLLED, FORCED COLLAPSE OF CAVITATION BUBBLES FOR IMPROVED STONE FRAGMENTATION DURING SHOCK WAVE LITHOTRIPSY

1997 ◽  
Vol 158 (6) ◽  
pp. 2323-2328 ◽  
Author(s):  
Pei Zhong ◽  
Franklin H. Cocks ◽  
Iulian Cioanta ◽  
Glenn M. Preminger
Keyword(s):  
Shock Wave ◽  
Shock Wave Lithotripsy ◽  
Stone Fragmentation ◽  
Cavitation Bubbles

scholarly journals High-speed imaging of ultrasound driven cavitation bubbles in blind and through holes

2018 ◽  
Vol 48 ◽  
pp. 39-50 ◽  
Author(s):  
Markus Kauer ◽  
Valentina Belova-Magri ◽  
Carlos Cairós ◽  
Gerd Linka ◽  
Robert Mettin
Keyword(s):  
High Speed ◽  
High Speed Imaging ◽  
Cavitation Bubbles
Sign in / Sign up

Export Citation Format

Share Document