Title :
Non-invasive production of small shallow lesions in soft tissues by mean of high intensity ultrasounds
Author :
Delon-Martin, C. ; Guers, C. ; Chapelon, J.-Y. ; Cathignol, D. ; Lacoste, F.
Author_Institution :
U.281, INSERM, Lyon, France
fDate :
Oct. 29 1992-Nov. 1 1992
Abstract :
A therapeutic ultrasonic focusing probe, operating at 7,31 MHz, is described. It is able to produce in a focal zone <; 1 mm3 an acoustic intensity (time averaged spatially averaged) up to 1500 W/cm2. Applied in vitro, it shows its ability to induce thermal damage lesions with temperatures of about 70°C under appropriate exposure conditions.
Keywords :
acoustic intensity; bioacoustics; biological tissues; biomedical ultrasonics; ultrasonic focusing; acoustic intensity; frequency 31 MHz; frequency 7 MHz; high intensity ultrasound; noninvasive lesion production; soft tissues; therapeutic ultrasonic focusing probe; thermal damage lesion; Distance measurement; Patents; Ultrasonic imaging;
Conference_Titel :
Engineering in Medicine and Biology Society, 1992 14th Annual International Conference of the IEEE
Conference_Location :
Paris
Print_ISBN :
0-7803-0785-2
Electronic_ISBN :
0-7803-0816-6
DOI :
10.1109/IEMBS.1992.5760998
