| abstract |
A method of excavating tissue in the body, including bringing a catheter ( 60 ) to a location, injecting microbubbles ( 84 ) at the location and causing cavitation of tissue ( 76 ) at the location using ultrasound. Preferably, the microbubbles ( 84 ) are injected directly into the tissue, such as by using a hollow needle ( 62 ). Alternatively, microbubbles ( 84 ) are injected into the vascular bed of the tissue at the location, so that the capillaries ( 86 ) are infused with microbubbles ( 84 ). |