Friday, April 22, 2011
Opening Up the Brain with Ultrasound - Technology Review: Ultrasound has been investigated for a decade as a tool for opening the blood-brain barrier. Most techniques, however, rely on specialized equipment to focus the ultrasound waves to a tiny point. They also require an injection with microbubbles to amplify the effect, and an MRI machine to guide the treatment. Al Kyle, president and CEO of Perfusion Technology, which is based in Andover, Massachusetts, says that the company's method is simpler and cheaper. Rather than opening the blood-brain barrier briefly at a single point, Perfusion uses a specially designed headset to expose the entire brain to low-intensity ultrasound waves for an hour-long treatment session.