Magnetic source imaging as a clinical tool in functional brain mapping

Magnetoencephalography (MEG) is a new non-invasive technique that measures signals from the magnetic field generated by the brain's electrical activit y These signals. one billion times smaller than those of an ordinary light bulb. show how information travels through, and is processed by. the brain. When combined with Magnetic Resonance Imaging (MRI) technology, which prod uces detailed pictures of the anatomy of the brain, MEG can create a Magnet ic Source image (MSI), a blueprint showing the intimate relationships betwe en brain structure and function: This blueprint enables doctors to map area s of diseased tissue and identify surrounding healthy tissue that supports sensory and motor functions. patients undergoing pre-operative MSI experien ce fewer complications, shorter postsurgical hospital stays and reduced nee d for post-surgical rehabilitation. Picker International, inc. is one of th e two major global suppliers of MEG technology, and in collaboration with H elsinki-based Neuromag Ltd., the Neuromag-122 is the leading product In use around the world.