title: Automated electroencephalogram identifies abnormalities in the ED.
abstract: BACKGROUND
  Advances in analysis of electrical signals have now made it possible to create a handheld electroencephalogram (EEG).
  
  
  METHODS
  The BrainScope device, currently under development by BrainScope Co, Inc, Washington, DC, was used to assess 153 patients who presented to a tertiary referral hospital with headache or altered mental status. A limited array of 8 adhesive electrodes, similar to electrocardiographic leads, was applied to the forehead of the subjects. The data were analyzed, and the result given by the algorithm was compared with the clinical diagnosis given to the patient.
  
  
  RESULTS
  One hundred fifty-three patients were enrolled. The patient was determined to be normal or abnormal using the algorithm in the device, and blinded clinicians determined whether this was accurate. The sensitivity of the device was 96% and the specificity was 87% for detecting abnormality.
  
  
  CONCLUSIONS
  The automated EEG device may be a useful tool for identifying brain abnormality in the emergency department.
authors.affiliation: Washington University School of Medicine, St. Louis, MO 63110, USA. naunheir@wusm.wustl.edu
authors.forename: Rosanne S
authors.initials: RS
authors.lastname: Naunheim
authors.forename: Matthew
authors.initials: M
authors.lastname: Treaster
authors.forename: Joy
authors.initials: J
authors.lastname: English
authors.forename: Teya
authors.initials: T
authors.lastname: Casner
mesh_terms: D000465:Algorithms; D001921:Brain / Q000503:physiopathology; D001927:Brain Diseases / Q000175:diagnosis* / Q000503:physiopathology; D002543:Cerebral Hemorrhage / Q000175:diagnosis / Q000503:physiopathology; D006259:Craniocerebral Trauma / Q000175:diagnosis / Q000503:physiopathology; D004569:Electroencephalography / Q000379:methods*; D004630:Emergencies; D004636:Emergency Service, Hospital; D005583:Fourier Analysis; D006261:Headache / Q000175:diagnosis / Q000209:etiology / Q000503:physiopathology; D006801:Humans; D019095:Point-of-Care Systems