Potential Contribution of Bilateral Magnetic Source Imaging to the Evaluation of Epilepsy Surgery Candidates
| Autor: | Maung Aung, Eugene C. Hirschkoff, Christopher C. Gallen, David F. Sobel |
|---|---|
| Rok vydání: | 1995 |
| Předmět: |
Adult
Male medicine.medical_specialty Adolescent Cost effectiveness Electroencephalography Epilepsy Epilepsy Complex Partial Image Processing Computer-Assisted medicine Medical imaging Humans Epilepsy surgery Ictal Child Dominance Cerebral Evoked Potentials Brain Diseases Brain Mapping medicine.diagnostic_test business.industry Magnetoencephalography Signal Processing Computer-Assisted Magnetic resonance imaging Equipment Design Middle Aged MSI protocol medicine.disease Magnetic Resonance Imaging Temporal Lobe Psychosurgery Surgery Female Neurology (clinical) Radiology business |
| Zdroj: | Neurosurgery. 37:1113-1121 |
| ISSN: | 1524-4040 0148-396X |
| DOI: | 10.1227/00006123-199512000-00011 |
| Popis: | The current procedures that are used to evaluate candidates for epilepsy surgery are time-consuming, costly, and often invasive. Magnetic source imaging (MSI), the combination of magnetoencephalography and anatomic imaging modalities, has shown promise as an efficient noninvasive means of localizing and characterizing seizure sources for possible resection. However, MSI has been limited by the inability to conduct simultaneous bilateral monitoring. In this study, a newly developed dual-magnetometer system was employed to record bilaterally the interictal activity in 30 candidates for epilepsy surgery. A standard monitoring protocol that included concurrent electroencephalographic recording and required a 2- to 3-hour examination period for each patient was developed. As a first step in a series of studies, the resultant MSI indications were compared with the information available from standard magnetic resonance imaging and concurrent electroencephalographic results. In 83% of the cases, this MSI protocol provided new information about the location of interictal epileptic activity that could be directive for subsequent patient care. Based on these results, it seems that MSI may become a cost-effective early step in epilepsy surgery evaluation. To continue the development on this basis, a study intended to validate the accuracy of MSI indicated by comparison with invasive electroencephalography has been initiated. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|