Objective To evaluate the diagnostic value of interparoxysmal examinations with 18F-FDG positron emission tomography ( PET), electroencephalography ( EEG) and magnetic resonance imaging ( MRI) in the localization of epileptic foci before operation. 目的比较癫痫发作间期18F-FDGPET显像、EEG、MRI在手术前癫痫灶定位中的价值。