Positive trial results show ultrasound energy can treat high blood pressure

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A procedure called renal denervation resulted in medication-free blood pressure control in over a third of trial patients

A promising new study is documenting the long-term effects of a novel surgical procedure using ultrasound to reduce blood pressure in patients with hypertension. It’s hoped the one-off procedure, called renal denervation, could offer patients an alternative option to taking hypertension drugs.

Renal denervation has been in development for almost a decade, however inconsistent clinical trial results have slowed the progress of this novel surgical procedure. The treatment involves delivering ultrasound pulses to nerves in the walls of renal arteries. This procedure has been found to reduce blood pressure, particularly in cases where hypertension has not effectively responded to traditional medications.

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Breakthrough opens door to $100 ultrasound machine

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UBC researcher Carlos Gerardo shows new ultrasound transducer Credit: Clare Kiernan, University of British Columbia

Engineers at the University of British Columbia have developed a new ultrasound transducer, or probe, that could dramatically lower the cost of ultrasound scanners to as little as $100. Their patent-pending innovation—no bigger than a Band-Aid—is portable, wearable and can be powered by a smartphone.

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New technology promises the ability to regrow teeth

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New low-intensity pulsed ultrasound device helps regrow teeth.

Researchers at the University of Alberta in Canada have developed a low-intensity pulsed ultrasound (LIPUS) technology that they hope will ultimately be able to re-grow lost or severely damaged teeth from the root, eliminating the need for pricey prosthetics and painful procedures.

 

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Novel Metamaterial Vastly Improves Quality of Ultrasound Imaging

evanescent waves  are transmitted by the new 3-D holey-structured metamaterial

University of California, Berkeley, scientists have found a way to overcome one of the main limitations of ultrasound imaging — the poor resolution of the picture

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DARPA’s Latest Pursuit – Helmets That Can Control Soldiers’ Brain Activity With Ultrasound

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The helmets are supposed to enhance the soldier’s cognitive abilities.

One of DARPA’s latest pursuits of cutting-edge research involves a neurotechnology lab at Arizona State University that specializes in ultrasonic brain stimulation. By implementing the technology in soldiers’ helmets, DARPA hopes to provide advantages to US troops by enhancing cognitive abilities; improving long-term alertness; and reducing stress, anxiety, and pain.

 

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First Hyperlens For Sound Waves Created

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The acoustic hyperlens is fashioned from 36 brass fins arranged in the shape of a hand-held fan.

Ultrasound and underwater sonar devices could “see” a big improvement, thanks to development of the world’s first acoustic hyperlens. Created by researchers with the U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab), the acoustic hyperlens provides an eightfold boost in the magnification power of sound-based imaging technologies. Continue reading… “First Hyperlens For Sound Waves Created”

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