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Just because something doesn’t do what you planned it to do doesn’t mean it’s useless.

 

Thomas Edison

Ultrasound helmet would make live images, brain-machine interface possible

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Posted in Software on 12th May, 2018 01:25 AM by Alex Muller

Ultrasound tech for the brain could mean real-time images during surgery, a better idea of which areas get stimulated by certain feelings or actions and an effective way for people to control software and robotics by thinking about it. Doctors and scientists have spent decades hoping for such an advance.

 

It was impossible before now, said Brett Byram, assistant professor of biomedical engineering. Ultrasound beams bounced around inside the skull, so no useful imagery could make it out.

 

With his new $550,000 National Science Foundation Faculty Early Career Development grant, Byram plans to use machine learning that will gradually be able to account for distortion and deliver workable images. What’s more, he wants to integrate electroencephalogram technology so doctors could see not only brain perfusion—how blood flow correlates to changes in thought, but also areas of stimulation related to movement and emotion.

 

“The goal is to create a brain-machine interface using an ultrasound helmet and EEG,” Byram said. “A lot of the technology we’re using now wasn’t available when people were working on this 20 or 30 years ago. Deep neural networks and machine learning have become popular, and our group is the first to show how you can use those for ultrasound beamforming.”

 

The applications, he said, are endless. At the basic level, it could allow for images at least as clear as those doctors are accustomed to seeing of the heart or womb.

 

Going forward, a person with limited movement due to ALS could think about wanting a glass of water, and a robotic arm could retrieve one because the helmet detected blood flow and EEG information that told it to. A student reading a paper may feel stress about a certain part that isn’t properly sourced, and the computer would know to put a mark there for later editing.

 

Byram said he’s working with Leon Bellan, assistant professor of mechanical engineering and biomedical engineering, and Michael Miga, Harvie Branscomb Professor and professor of biomedical engineering, radiology and neurological surgery, to develop the helmet. He plans to invite Medical Center doctors to the team as their work progresses.


Tags: brainneurosciencehealthmedicineresearch

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