title: Technical Aspects of Intra-arterial Electroencephalogram Recording.
abstract: The purpose of this prospective study is to show a technique for recording electroencephalographic activity via an endovascular approach in presurgical evaluation of epileptic patients. Technical aspects and insertion strategy are outlined. Advantages of intra-arterial electroencephalography have been demonstrated. It is a semi-invasive procedure that provides information in temporal lobe and extratemporal epilepsy. It allows a dynamic electroencephalographic recording and patient tolerance is excellent. Risks are practically absent. Disadvantages are: in comparison to ovale electrodes, chronic and multicontact recording is not possible and the recording is only intercritical.
authors.affiliation: Neuroradiology Section, Radiology Department, Miguel Servet Hospital; Zaragoza, Spain - hrs.s.rayos@cfnavarra.es.
authors.forename: S
authors.initials: S
authors.lastname: García-Asensio
authors.forename: S
authors.initials: S
authors.lastname: Guelbenzu
authors.forename: R
authors.initials: R
authors.lastname: Barrena
authors.forename: P
authors.initials: P
authors.lastname: Valero