Abstract
Stereotactically implanted depth electrodes are one means of localization of seizure foci. Unilateral seizure focus localization was obtained in 72.7% mesial temporal (MT) implants and 50% of focus/extramesial temporal (MT-XMT) implants. Recent increase in localization to over 80% in MT implants was possible because a larger percentage of patients had MT-XMT implants. Increased localization to 60% in MT- XMT implants was related to using more XMT electrodes per patient and to orienting electrodes to monitor larger limbic XMT and neocortical areas. Since MT foci were localized in 25% of MT-XMT cases, MT electrodes should be included with all MT-XMT implants. Depth electrography can also be used to rule out certain patients as surgical candidates. Therefore, a surgical decision can be reached in a very high percentage of patients undergoing depth implantation. Surgical results are comparable to those in our overall series.
Original language | English (US) |
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Pages (from-to) | 60-66 |
Number of pages | 7 |
Journal | Stereotactic and Functional Neurosurgery |
Volume | 54 |
Issue number | 1-8 |
DOIs | |
State | Published - 1990 |
Keywords
- Depth electrodes
- Epilepsy focus
- Seizure focus localization
- Stereotactic surgery
- Temporal lobe
ASJC Scopus subject areas
- Surgery
- Clinical Neurology