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Topic: Magnetoencephalography

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Inverse problem

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	BioMag publications
		Ruohonen, P.Ravazzani, and F. Grandori, "An analytical model to predict the electric field and excitation zones due to magnetic stimulation of peripheral nerves", IEEE Trans.Biomed.
		Ilmoniemi, "Magnetoencephalography: Studies of information processing in the human brain", in The Inverse Problem, edited by H. Lübbig (Akademie Verlag, Berlin 1995), pp.
		Näätänen, R.J. Ilmoniemi, and K. Alho, "Magnetoencephalography in studies of attention", in Attention and Orienting, edited by P.J. Lang, R.F. Simons, and M.T. Balaban (Lawrence Erlbaum Associates, Mahvah, New Jersey 1997), pp.
	www.biomag.hus.fi /publications.html (9275 words)

	Introduction to MEG/EEG
		Magnetoencephalography (MEG) is completely noninvasive, non-hazardous technology for functional brain mapping, providing spatial discremination of 2 mm and an excellent temporal resolution on the order of 1 ms, localizing and characterizing the electrical activity of the central nervous system by measuring the associated magnetic fields emanating from the brain.
		Every current generates a magnetic field according to the right hand rule of physics.
		These magnetic measurements on the brain (MEG), measurements on the magnetic field of the heart (MCG), and measurements on the magnetic field of the fetal (fMEG) are carried out at CTF Systems Inc.
	www.geocities.com /Tokyo/1158/meg_eeg.html (1000 words)

	An Inverse Source Problem for Maxwell's Equations in Magnetoencephalography
		An Inverse Source Problem for Maxwell's Equations in Magnetoencephalography: SIAM Journal on Applied Mathematics Vol.
		Consider an inverse source problem for Maxwell's equations which arises in determining locations of epileptic foci in the living human brain.
		The method and results are expected to find applications particularly in magnetoencephalography.
	epubs.siam.org /sam-bin/dbq/article/37392 (219 words)

	Magnetoencephalography and Magnetic Source Imaging: Presurgical Localization of Epileptic Lesions and Presurgical ...
		Magnetoencephalography and Magnetic Source Imaging: Presurgical Localization of Epileptic Lesions and Presurgical Functional Mapping
		This Assessment examines the available evidence to determine whether magnetoencephalography (MEG) and/or magnetic source imaging (MSI) provide additional diagnostic information that improves the management and outcomes of patients who are being evaluated for neurosurgical treatment in two main clinical uses.
		TEC Assessments should not be construed to suggest that the Blue Cross Blue Shield Association, Kaiser Permanente Medical Care Program or the TEC Program recommends, advocates, requires, encourages, or discourages any particular treatment, procedure, or service; any particular course of treatment, procedure, or service; or the payment or non-payment of the technology or technologies evaluated.
	www.bluecares.com /tec/vol18/18_06.html (950 words)

	Focusing Inversion of Electroencephalography and Magnetoencephalography Data - Portniaguine, Weinstein, Johnson ... (Site not responding. Last check: 2007-10-22)
		Focusing Inversion of Electroencephalography and Magnetoencephalography Data (2001)
		Abstract: Introduction The inverse electroencephalography (EEG) and magnetoencephalography (MEG) problems seek to reconstruct neural sources based on measurements of the electric or magnetic field recorded outside of the head.
		Portniaguine, O., Weinstein, D., and Johnson, C. Focusing Inversion of Electroencephalography and Magnetoencephalography 3rd Noninvasive Symposium on Noninvasive Functional Source Imaging, 2001.
	citeseer.ist.psu.edu /portniaguine01focusing.html (385 words)

	The Henry Ford Departments of Neurology and Detroit, Michigan
		The Henry Ford Departments of Neurology and Neurosurgery bring together a team of nationally recognized clinicians and researchers to provide the most up-to-date diagnostic, medical and surgical treatment services for patients with neurological disease.
		State-of-the-art technology services include magnetoencephalography (MEG), the only device in the Midwest; shaped beam radiosurgery, one of only three in the United States; stereotactic microsurgery; brain mapping; comprehensive electromyography (EMG); outpatient electroencephalography (EEG) and continuous video/EEG monitoring; evoked potential studies; and cerebrovascular evaluations including xenon inhalation technique, regional cerebral blood flow and transcranial Doppler studies.
		If you're experiencing a serious health problem and want a second opinion on treatment options, the specialists at Henry Ford are prepared to help you.
	www.henryfordhealth.org /159.cfm (162 words)

	Magnetoencephalography Lecture Scheduled (Site not responding. Last check: 2007-10-22)
		Lauri Parkkonen, MSc, of the Helsinki University of Technology presented a lecture on "Magnetoencephalography (MEG) in Clinical Routine and Brain Research," October 28.
		The talk covered current clinical applications of MEG -- including epilepsy and presurgical functional mapping -- and illustrated how the system is used in brain research.
		Please direct all web-specific inquiries to our web manager.
	www.neurosurgery.pitt.edu /news/archive/2004/meg_lecture.html (263 words)

	Brain scans made easy (May 2004) - News - PhysicsWeb (Site not responding. Last check: 2007-10-22)
		Magnetic measurements of brain activity could be free from noise in the future thanks to a new helmet-like device developed by medical physicists at the Los Alamos National Laboratory in the US.
		Magnetoencephalography (MEG) is the only technique that can directly measure neuronal activity in the brain, but it is plagued by background noise that interferes with signals from the brain itself.
		The new helmet could provide much more accurate information on brain function (P Volegov et al.
	physicsweb.org /article/news/8/5/5 (401 words)

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