Multimodality examination for detection of the epileptic foci with special reference to endovascular EEG recording

Enomoto, Takao; Matsumura, Akira; Matsumaru, Yuji; Aoki, Kazuyasu; Nose, Tadao

doi:10.1016/s0531-5131(01)00679-3

Cited by 3 publications

(4 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…What we found in this study was that an eEEG could potentially detect localized epileptogenicity with a 97% sensitivity. The sensitivity of the eEEG in this study was similar to or higher than that described in past studies [12,13,29]. Mikuni et al performed an eEEG from the cavernous sinus for six patients with mesial temporal lobe epilepsy.…”

Section: Discussionsupporting

confidence: 87%

“…This study confirmed our hypothesis that an eEEG could detect scalp EEG-undet able, SDE-detectable interictal epileptiform discharges. What we found in this study that an eEEG could potentially detect localized epileptogenicity with a 97% sensitiv The sensitivity of the eEEG in this study was similar to or higher than that describe past studies [12,13,29]. Mikuni et al performed an eEEG from the cavernous sinus for…”

Section: Discussionsupporting

confidence: 84%

See 1 more Smart Citation

Endovascular Electroencephalogram Records Simultaneous Subdural Electrode-Detectable, Scalp Electrode-Undetectable Interictal Epileptiform Discharges

et al. 2022

Self Cite

View full text Add to dashboard Cite

Introduction: We hypothesized that an endovascular electroencephalogram (eEEG) can detect subdural electrode (SDE)-detectable, scalp EEG-undetectable epileptiform discharges. The purpose of this study is, therefore, to measure SDE-detectable, scalp EEG-undetectable epileptiform discharges by an eEEG on a pig. Methods: A pig under general anesthesia was utilized to measure an artificially generated epileptic field by an eEEG that was able to be detected by an SDE, but not a scalp EEG as a primary outcome. We also compared the phase lag of each epileptiform discharge that was detected by the eEEG and SDE as a secondary outcome. Results: The eEEG electrode detected 113 (97%) epileptiform discharges (97% sensitivity). Epileptiform discharges that were localized within the three contacts (contacts two, three and four), but not spread to other parts, were detected by the eEEG with a 92% sensitivity. The latency between peaks of the eEEG and right SDE earliest epileptiform discharge ranged from 0 to 48 ms (mean, 13.3 ms; median, 11 ms; standard deviation, 9.0 ms). Conclusion: In a pig, an eEEG could detect epileptiform discharges that an SDE could detect, but that a scalp EEG could not.

show abstract

Section: Discussionsupporting

confidence: 87%

Section: Discussionsupporting

confidence: 84%

Endovascular Electroencephalogram Records Simultaneous Subdural Electrode-Detectable, Scalp Electrode-Undetectable Interictal Epileptiform Discharges

et al. 2022

Self Cite

View full text Add to dashboard Cite

show abstract

“…One third of recorded sharp waves had greatest amplitude at the intra-arterial electrode (∼300 µV). Enomoto et al [48] also demonstrated successful recording of ictal activity in non-lesional brain areas. Kunieda et al [49] recorded temporal lobe activity with a Seeker guidewire in the cavernous sinus and noted similar sensitivity to ictal discharges and two times higher sensitivity to interictal discharges with EV EEG as compared to scalp EEG.…”

Section: Seeker Guidewirementioning

confidence: 99%

“…In many cases, a standard metal guidewire was advanced to the recording location and a standard catheter was used to insulate the entire length except for a few millimeters at the end, producing a single electrode at the tip [23,53]. In some cases, custom insulated guidewires with exposed metal electrodes [15,16,19,24,[46][47][48][49][50][51] or catheters with embedded electrodes [25,52] were built specifically for recording purposes (rather than using existing guidewires, which were not insulated, or existing catheters, which did not contain electrode sites). Guidewire-and catheterlike devices used for endovascular recording typically range from 0.2 to 0.6 mm in diameter with a 1.5-60 mm exposed tip (electrode) length [15,19,[22][23][24][25].…”

Section: Types Of Endovascular Recording and Stimulation Devices 321 ...mentioning

confidence: 99%

Making a case for endovascular approaches for neural recording and stimulation

Thielen

Fujii

et al. 2023

J. Neural Eng.

View full text Add to dashboard Cite

There are many electrode types for recording and stimulating neural tissue, most of which necessitate direct contact with the target tissue. These electrodes range from large, scalp electrodes which are used to non-invasively record averaged, low frequency electrical signals from large areas/volumes of the brain to penetrating microelectrodes which are implanted directly into neural tissue and interface with one or a few neurons. With the exception of scalp electrodes (which provide very low-resolution recordings), each of these electrodes requires a highly invasive, open brain surgical procedure for implantation, which is accompanied by significant risk to the patient. To mitigate this risk, a minimally invasive endovascular approach can be used. Several types of endovascular electrodes have been developed to be delivered into the blood vessels in the brain via a standard catheterization procedure. In this review, the existing body of research on the development and application of endovascular electrodes is presented. The capabilities of each of these endovascular electrodes is compared to commonly used direct-contact electrodes to demonstrate the relative efficacy of the devices. Potential clinical applications of endovascular recording and stimulation and the advantages of endovascular versus direct-contact approaches are presented.

show abstract