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Ultrasound “bullets” to destroy cancerous tumors – CalTech

Scientists at the California Institute of Technology are experimenting with sound “bullets” that could improve cancer treatments by better focusing the waves on precise areas. Ultrasound is often used to kill cancer cells. These sound waves emitted from an ultrasonic device raise the temperature of diseased cells causing them to die. But too much¬†intense they’ll damage the surrounding healthy tissue, But focusing the waves on precisely damage can be minimized.

Because it’s possible to control the sound energy with sound “bullets” , it’s possible to make a kind of ultrasound machine that wouldn’t suffer from the scattering and wave diffraction problems that ordinary ultrasound does. Sending a high-power pulse through tissue would be safer to do. When treating tumors this way, more energy could be sent at one time, with tighter focus.