College of Engineering

URI: http://hdl.handle.net/2144/1364

Investigation of bubble dynamics and heating during focused ultrasound insonation in tissue-mimicking materials

Yang, Xinmai (2010-11-10)

The deposition of ultrasonic energy in tissue can cause tissue damage due to local heating. For pressures above a critical threshold, cavitation will occur in tissue and bubbles will be created. These oscillating bubbles ...
Sound propagation and scattering in bubbly liquids

Wilson, Preston Scot (Boston University, 2002)

In the ocean, natural and artificial processes generate clouds of bubbles which scatter and attenuate sound. Measurements have shown that at the individual bubble resonance frequency, sound propagation in this medium is ...
The role of acoustic cavitation in enhanced ultrasound-induced heating in a tissue-mimicking phantom

Edson, Patrick Lee (Boston University, 2001)

A complete understanding of high-intensity focused ultrasound-induced temperature changes in tissue requires insight into all potential mechanisms for heat deposition. Applications of therapeutic ultrasound often utilize ...
A study of stone fragmentation in shock wave lithotripsy by customizing the acoustic field and waveform shape

Chitnis, Parag Vijay (2007)

Shock wave lithotripsy is the preferred treatment modality for kidney stones in the United States. Despite clinical use for over twenty-five years, the mechanisms of stone fragmentation are still under debate. A piezoelectric ...