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Neuromag® Magnetoencephalography (MEG) Installed at UPMC Presbyterian

Pittsburgh, February 1, 2006 -- A state-of-the-art neuromagnetic recording system, the Neuromag®, has been installed at the Department of Neurological Surgery, in conjunction with the University of Pittsburgh Medical Center (UPMC). Manufactured by Elekta—in collaboration with Helsinki Technical University—this system is capable of non-invasively recording magnetic fields produced by neuronal activity occurring within the brain. This observed data is called the magnetoencephalogram (MEG) and is analogous to the electroencephalogram (EEG) but represents the magnetic fields produced by ion flow associated with neuronal activity rather than the electric potentials measured in the EEG.

What MEG Offers

  • A direct measure of brain function. Other brain functional imaging techniques such as fMRI, PET and SPECT are secondary measures of brain function reflecting brain metabolism.
  • A very high temporal resolution device. Events with time scales on the order of msecs can be resolved, differentiating MEG from fMRI, PET and SPECT, which have much longer time scales.
  • Excellent spatial resolution and accuracy. Sources can be localized with an accuracy of millimeters.
  • Completely non-invasive. Injection of isotopes or exposure to X-rays or magnetic fields is not required. Children and infants can be studied and repeated tests done.


For more information on the Neuromag, or to schedule an appointment, call (412) 647-3450.

Neuromag