抄録
It is not widely known that therapeutic ultrasound has been developed for almost as long as diagnostic ultrasound. However, recent progress in ultrasound technology and medical imaging technology has brought therapeutic ultrasound into center stage, since it has excellent therapeutic features.
First, ultrasound can penetrate into the body more deeply than other forms of energy, for example microwaves and laser light. Second, its energy can be easily localized into a small region using an acoustic lens or a concave-shaped transducer. Therefore, ultrasound energy makes it possible to treat a small target inside the body without damage to surrounding normal tissue. Furthermore, mechanical, chemical and thermal effects can be chosen by selecting its frequency and intensity.
Ultrasound is a promising form of energy with many potential applications in the minimally invasive treatment (MIT) field.
