Imaging microbubbles and tissues using a linear focussed scanner operating at 20 MHz: possible implications for the detection of cavitation thresholds

摘要: Abstract B-Scan images have been used as a means of detecting the onset cavitation in tissues. New echoes appearing during simultaneous sonication with therapeutic ultrasound often attributed to bubble formation. In this study temperature rises up 15°C W−1 cm2 guinea pig leg (post-mortem) were found, which would itself increase rate growth gas bubbles. It is also hypothesized that dependent attenuation coefficient predicted by Bamber and Hill may, at least part, account for new Possible artefactual B-scan arising from acoustically induced bubbles coupling medium are discussed.