Localization of Epileptogenic Foci Using a Simple Reference Subtraction Montage to Document Small Interchannel Time Differences Article

Jayakar, P, Duchowny, MS, Resnick, TJ et al. (1991). Localization of Epileptogenic Foci Using a Simple Reference Subtraction Montage to Document Small Interchannel Time Differences . JOURNAL OF CLINICAL NEUROPHYSIOLOGY, 8(2), 212-215. 10.1097/00004691-199104000-00009

cited authors

  • Jayakar, P; Duchowny, MS; Resnick, TJ; Alvarez, LA

authors

abstract

  • Summary: We present a modified EEG montage that detects small interchannel time differences and assists in localizing the epileptogenic focus. Regions with apparently synchronous epileptic discharges are displayed simultaneously in referential and subtraction derivations. The subtraction derivation is a bipolar configuration of two regions of interest that are not necessarily adjacent. The referential derivation reveals the polarity, voltage, and morphology of the two discharges, and the subtraction derivation detects asynchrony; the combined reference-subtraction derivation thus indicates the region that is activated first. © 1991 American Clinical Neurophysiology Society.

publication date

  • January 1, 1991

published in

Digital Object Identifier (DOI)

start page

  • 212

end page

  • 215

volume

  • 8

issue

  • 2