Talk:Magnetoencephalography

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[edit] MEG images produced

What type of images do these MEG's produce? Can anyone in the field post one?

MEG's don't produce images directly. They generate data points which can be plotted on a DICOM image such as an MRI. Here is an example from the 4D Neuroimaging's website (they manufacture these devices) http://4dneuroimaging.com/images/MEG_Work_4.jpg These images represent brain functions such as language centers or motor/sensory function areas in the cortex. It is also valuable for localizing epileptiform (i.e. seizure foci) activity. With this information, a neurosurgeon has a better view of which portion of cortex is functional (i.e. should be preserved) and which is diseased and should be resected (seizure focus, tumor, etc.). The difference in location may be millimeters.