A MEG (magnetoencephalography) examination is totally non-invasive and painless. MEG is used for mapping of brain signals to identify and localize various activities.

The information is used for clinical applications such as pre-surgical mapping, epilepsy investigations and different research areas.

The advantage of MEG is that you see the brain in action, rather than viewed as a still image, this gives unique information that no other image or scanning method can provide.

Elekta Neuromag® is a preferred system among many clinicians and researchers around the world, because of its high and reliable performance.

Examination Process

• The actual scanning process with MEG can take as little as a few minutes or up to several hours depending on the procedure. Three to five small coils are attached on the patient’s head. These coils form a coordinate system that helps synthesize the combined MEG and MRI data.
  
  
• Location of the coils with respect to anatomical landmarks on the head are determined with a 3-dimensional digitizer to allow alignment of the MEG coordinates with the anatomy provided by separate MRI images. During the measurement the marker coils are employed to continuously follow the head position.
  
  
• The brain activity, spontaneous or evoked in response to various types of stimuli, is recorded with good on-line control on the quality of the recorded data.
  
  
• To complete the examination, the MEG data is analysed by the software and the resulting knowledge of the spatial distribution of brain activity is integrated with the MRI image.