Just like a spoon is used to stir sugar into a cup of tea, high-frequency sound waves may help doctors get rid of deadly blood clots in the brain, according to a study released on Wednesday. Researchers reported they were able to increase the efficiency of Genentech Inc.'s clot dissolver t-PA by 63 percent by bathing the area in front of the clot with ultrasound while the drug went to work. In addition, the technique seemed to reduce the likelihood of brain bleeding, a well-known risk of t-PA therapy.
