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The manual zero potential shifting method in dipole analysis: comparison with neuroimagings in a patient with epilepsy.
- Source :
-
Psychiatry and clinical neurosciences [Psychiatry Clin Neurosci] 2001 Aug; Vol. 55 (4), pp. 419-22. - Publication Year :
- 2001
-
Abstract
- We previously introduced the manual zero potential shifting (MZPS) method into dipole analysis to reduce the influence by error potential at the analytical stage. The source localizations of epileptic spikes as an equivalent current dipole (ECD) were estimated in a patient with symptomatic epilepsy and contrasted with findings obtained by magnetic resonance imaging (MRI) and single photon emission computed tomography (SPECT). When spikes were analyzed by the MZPS method, ECDs had high values of dipolarity, an indicator of ECD reliability. Moreover, their locations corresponded with lesions shown by MRI and SPECT. When the same spikes were analyzed by the conventional method, dipolarity values were declined and the locations did not correspond with lesions. These results provide further evidence that the MZPS method is of clinical utility in evaluating the electric source generator of epileptic spikes.
- Subjects :
- Adult
Epilepsies, Partial pathology
Epilepsies, Partial physiopathology
Humans
Magnetic Resonance Imaging
Male
Parietal Lobe pathology
Parietal Lobe physiopathology
Predictive Value of Tests
Tomography, Emission-Computed, Single-Photon
Brain pathology
Brain physiopathology
Electroencephalography methods
Epilepsies, Partial diagnosis
Subjects
Details
- Language :
- English
- ISSN :
- 1323-1316
- Volume :
- 55
- Issue :
- 4
- Database :
- MEDLINE
- Journal :
- Psychiatry and clinical neurosciences
- Publication Type :
- Academic Journal
- Accession number :
- 11442895
- Full Text :
- https://doi.org/10.1046/j.1440-1819.2001.00884.x