What is EEG FMRI?

Electroencephalographic correlated device Functional magnetic resonance imaging (EEG FMRI) allows measuring electrical brain waves while analyzing changes in blood oxygen during brain activity. EEG FMRI scans the brain in real time, as well as video-cords activity for later research. This medical equipment initially helped doctors to determine the brain area where epileptic seizures occur. Newer use of EEG FMRI includes research on neuroscience of brain disorders, sleep and psychiatry study.

Part of the EEG test detects hikes in electric waves throughout the brain. Scientists have found that they could also notice the metabolic response of the body to brain activity by adding scans by displaying magnetic resonance. When the test was first used in 1993, doctors recorded electric waves and changes in blood oxygen independently to prevent mixed signals. Six years later the computer software was on the market to make EEG F simultaneouslyMRI.

EEG FMRI scan usually occurs during the two -hour period. The electrodes are connected to the patient's and amplifier head and connected to the computer. Test records fluctuate in brain activity and how they affect FMRI signals defined as signs of oxygen levels in the blood (fat). Bold represents the metabolic response of the body to the brain waves. Doctors can determine whether electrical activity creates more or less oxygen in the blood.

Studies show that most bold signals occur in the brain area where electrical activity is formed. Occasionally these signals occur elsewhere, but EEG FMRI often helps to determine the type of epilepsy and the affected area of ​​the brain. Scan results could help surgery strategies to destroy brain cells that cause seizures if this particular part of the brain does not check critical functions.

These scanning usually do not capture changes during the actual zOvatu, because these episodes are unpredictable. Move of the patient during a seizure would probably be a blurry image that the machine picked up. Scanning provides a general view of brain activity and how blood oxygen levels correlate with fraud in nerve changes.

Some studies have found problems with EEG FMRI from inconclusive results. Some patients have no change or insignificant changes in bolds when electrical activity increased. One study that mapped the brain waves of epileptic patients for a long time in an effort to identify areas in the brain that cause seizures, showed mixed results.