Modelling the temporal region of patients with temporal lobe epilepsy
| Autor: | S Sato, D F Rose, P D Smith, J White |
|---|---|
| Rok vydání: | 1987 |
| Předmět: |
Radiological and Ultrasound Technology
medicine.diagnostic_test business.industry Models Neurological Magnitude (mathematics) Electroencephalography medicine.disease Temporal Lobe Field pattern Temporal lobe Skull Epilepsy medicine.anatomical_structure Optics Nuclear magnetic resonance Epilepsy Temporal Lobe medicine Humans Computer Simulation Radiology Nuclear Medicine and imaging Ictal business Maxima Geology |
| Zdroj: | Physics in Medicine and Biology. 32:59-63 |
| ISSN: | 1361-6560 0031-9155 |
| DOI: | 10.1088/0031-9155/32/1/009 |
| Popis: | EEG interictal epileptiform discharges in temporal lobe epilepsy are associated with magnetic fields. The maxima of magnetic spikes recorded over the spherical portions of the head appear fairly symmetric, whereas those over the lower temporal region often have irregular shapes. Furthermore, their magnitude is often unequal with the extremum over the lower temporal region usually of lower magnitude than the extremum over the upper temporal region. This lack of symmetry in shape and magnitude may be due to non-sphericity of the skull over the temporal region or to variations in conductivities of intervening tissues. The authors present their observation in two patients suggesting that the surface contours of the head contribute to the apparent asymmetries of the field pattern but that head contours alone may not account for the asymmetries seen in the clinical data. |
| Databáze: | OpenAIRE |
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