We use cookies to understand how you use our site and to improve your experience. This includes personalizing content and advertising. To learn more, click here. By continuing to use our site, you accept our use of cookies. Cookie Policy.

Features Partner Sites Information LinkXpress
Sign In
Advertise with Us

Download Mobile App




Events

ATTENTION: Due to the COVID-19 PANDEMIC, many events are being rescheduled for a later date, converted into virtual venues, or altogether cancelled. Please check with the event organizer or website prior to planning for any forthcoming event.

Next-Gen MEG Scanners Worn as Helmet Could Detect Brain Abnormalities at POC

By MedImaging International staff writers
Posted on 19 Jul 2022
Print article
Image: A laser interaction with diamond materials (Photo courtesy of RMIT University)
Image: A laser interaction with diamond materials (Photo courtesy of RMIT University)

Diamond is already used for sensing magnetic fields, where the amount of light that comes from quantum defects in the diamond changes with the strength of the magnetic field. The problem with today’s approach is that most of that light is lost. Now, an international research team has developed a laser-based diamond sensor that can measure magnetic fields up to 10 times more precisely than standard techniques. The innovation could help improve on existing magnetic-field sensing techniques for mapping brain activity to identify disorders.

Today’s magnetoencephalography, or MEG, technology is very sensitive, but also bulky, expensive to install and needs to operate at ultra-cold temperatures with liquid helium and patients must remain still.  MEG technology based on the new diamond-laser sensor developed jointly by scientists at the Fraunhofer Institute for Applied Solid State Physics (IAF, Freiburg, Germany) and RMIT University (Melbourne, Australia) would be much smaller than today’s devices, would operate at room temperature and could be fitted to patients who can move around. With this, scientists have taken a promising step towards a new generation of accurate, affordable and portable devices to detect concussion, epilepsy and dementia. With sufficient funding and collaboration with industry, a proof-of-concept device using the new sensor could be developed within five years.

“Our breakthrough was to make a laser from the defects,” said Professor Andrew Greentree, an RMIT expert in diamond sensing technology. “By collecting all the light – instead of just a small amount of it – we can detect the magnetic field 10 times more precisely with our sensor compared with current best practice.”

“Current MEG machines are huge devices, with dedicated facilities, and they require magnetic shielding around them as well,” added Greentree. “We really want to have something that we can place on a patient's head and we want them to be able to move around – and there’d be no need for expensive liquid helium to operate such a device.”

Related Links:
IAF 
RMIT University 


Print article
CIRS -  MIRION
Radcal

Channels

Radiography

view channel
Image: The Definium 656 HD is the company’s most advanced fixed X-ray system yet (Photo courtesy of GE Healthcare)

Next-Gen X-Ray System Brings ‘Personal Assistant’ to Radiology Departments

X-ray imaging often provides the entry point to diagnostic imaging - accounting for 60% of all imaging studies conducted. As a result, X-ray technologists, radiologists and radiology administrators are... Read more

Imaging IT

view channel
Illustration

Global AI in Medical Diagnostics Market to Be Driven by Demand for Image Recognition in Radiology

The global artificial intelligence (AI) in medical diagnostics market is expanding with early disease detection being one of its key applications and image recognition becoming a compelling consumer proposition... Read more
Copyright © 2000-2022 Globetech Media. All rights reserved.