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Your search keyword '"J. Vieth"' showing total 3 results
Start Over Author "J. Vieth" Journal biomedizinische technik. biomedical engineering
3 results on '"J. Vieth"'

1. Combined study of ischemic brain conditions using magnetencephalography and proton magnetic resonance spectroscopy imaging

Author

Mark Saguer, K. Wicklow, Kyousuke Kamada, Martin Kaltenhäuser, Helmut Kober, Martin Möller, and J. Vieth

Subjects
Adult, Male, Relaxometry, Brain Mapping, Materials science, Magnetic Resonance Spectroscopy, Biomedical Engineering, Cerebral Infarction, Middle Aged, Synaptic Transmission, Proton magnetic resonance, Brain Ischemia, Nuclear magnetic resonance, Ischemic brain, Humans, Female, Spectroscopy, Energy Metabolism, Aged
Published
1997

2. State of the multichannel magnetoencephalography

Author

J. Vieth

Subjects
Electromagnetic field, Physics, Signal processing, medicine.diagnostic_test, Brain activity and meditation, Biomedical Engineering, Brain, Magnetoencephalography, Brain Edema, Signal Processing, Computer-Assisted, State (functional analysis), Density estimation, Dipole, Nuclear magnetic resonance, Electromagnetic Fields, Microcomputers, medicine, Humans, Communication channel, Cerebral Hemorrhage
Abstract

It could be demonstrated in many investigations with single- or several- channel magnetic recording instruments that, a focal pathological source could be located mainly in close connection to verified brain lesions. Our experience with a 37- channel instrument did support these results. In addition, we had available the whole dynamics of the brain activity in time and space, but it must be considered, that the pathological activity is mixed more or less with the background activity. One simple method to separate partly both activities is the "dipole density plot" (DDP), which concentrates the density of dipoles in areas of focal pathological activity.

Published
1990

3. Three dimensional localization of the pathological area in cerebro-vascular accidents with multichannel magnetoencephalography

Author

P. Grummich, Helmut Kober, Siegfried Schneider, G. Sack, Oliver Ganslandt, Uta Kerber, Klaus Abraham-Fuchs, Thomas Schmidt, and J. Vieth

Subjects
medicine.diagnostic_test, business.industry, Brain Neoplasms, Biomedical Engineering, Magnetoencephalography, Signal Processing, Computer-Assisted, Cerebral Infarction, Cerebro, Diagnosis, Differential, Ischemic Attack, Transient, Medicine, Humans, business, Pathological, Neuroscience
Published
1990

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