Transcranial magnetic stimulation of the cerebral cortex

Author

Davey, Keny ; Kalaitzakis, Kostas C. ; Epstein, Charles

Author_Institution

Sch. of Electr. Eng., Georgia Inst. of Technol., Atlanta, GA, USA

fYear

1988

fDate

4-7 Nov. 1988

Firstpage

922

Abstract

Surgical resection of the epileptic focus is an effective treatment for otherwise uncontrollable epileptic seizures. Localization of cerebral function in the region of the epileptic focus is a mandatory part of the presurgical evaluation. Development of magnetic stimulation for evaluation of speech and memory is technically feasible and will lead to safer, more efficient, noninvasive evaluation of seizure surgery patients. Strategies for predicting an optimum excitation circuit and field configurations are discussed. The goal is to maximize the rate of change of the magnetic field for a minimum of 20 mu s while not exceeding reasonable power requirements. The induced field level must be repeated at 15-20 Hz to maintain constant brain stimulation during the period of the test.<>

Keywords

biological effects of fields; biomagnetism; brain; neurophysiology; speech; surgery; 15 to 20 Hz; 20 mus; brain stimulation; cerebral cortex; cerebral function localisation; effective treatment; epileptic focus; epileptic seizures; field configurations; magnetic field; memory; noninvasive evaluation; optimum excitation circuit; power requirements; presurgical evaluation; seizure surgery patients; speech; surgical resection; transcranial magnetic stimulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1988. Proceedings of the Annual International Conference of the IEEE

Conference_Location

New Orleans, LA, USA

Print_ISBN

0-7803-0785-2

Type

conf

DOI

10.1109/IEMBS.1988.95253

Filename

95253