Basic Physics of Low Frequency Therapeutic Ultrasound

摘要: Therapeutic ultrasound, in general, includes a wide variety of applications. Some these depend on the ability ultrasound to penetrate tissue and deposit heat internally spatial temporal distributions, which can, some extent, be predetermined controlled. In other applications produces biologic effect by virtue its exert mechanical forces, stresses, torques, as well displacements flow. various therapy, frequency varies from about 20 kHz 3 MHz (3000 kHz).