LED tech to be used instead of fMRIs

Instead of using a traditional method of brain analysis through positron emission technology (PET) or functional magnetic resonance imaging (fMRI), specialists have proposed an alternative method that prevents patients from intense radiation exposure. As innovated by the bright minds at Washington University, scientists have developed a system that uses optical tomography (DOT) technology. Interestingly enough, this treatment’s process takes LEDs and directs them toward the patient’s head.

In the past, DOT technology was used to observe the brain. The improved DOT tech, as used by the scientists at Washington University, can take a look at two-thirds of the brain all at the same time, imaging various regions at the same time.

While receiving treatment, the patient must wear a helmet of sorts adorned with many light sensors and LEDs. This technique enables light to project through the patient’s skull and directly into the brain. Scientists then note how the brain tissue takes in and refracts the light in order to figure out where/when the oxygenated blood flows in. This is because increased blood flow signifies the extent of neuronal activity.

DOT has been tested and has performed quite well thus far. In the same areas of the brain where DOT technology and fMRI were tested, the brains produced the same result.  With this technology, patients will no longer have to worry about prolonged exposure to magnetic fields. This technological setup is also more portable than fMRI or PET systems, enabling it to be transported to various locations.  

Story via Gizmag