title: Utility of the Bender Gestalt Test for differentiation of dementia with Lewy bodies from Alzheimer's disease in patients showing mild to moderate dementia.
abstract: OBJECTIVE
  We examined the utility of the Bender Gestalt Test (BGT) for the differentiation of dementia with Lewy bodies (DLB) from Alzheimer's disease (AD), comparing BGT scores between DLB and AD patients showing mild to moderate dementia.
  
  
  METHODS
  Eighteen DLB patients, 36 AD patients controlled by age, years of education, Clinical Dementia Rating and Mini Mental State Examination scores, and 21 nondemented elderly participants controlled by age and years of education were subjected to the BGT. Their BGT performances were scored according to the Pascal-Suttell method.
  
  
  RESULTS
  The DLB group showed significantly higher (that is worse) BGT scores than the other groups. When a cutoff point of 98 was used to differentiate DLB from AD, the patients exceeding 98 were 94% in the DLB group, 17% in the AD group and 0% in the control group. The sensitivity and specificity of this cutoff point were 0.94 and 0.89, respectively.
  
  
  CONCLUSIONS
  The BGT is a useful neuropsychological test to differentiate DLB from AD.
authors.affiliation: Department of Psychiatry, Juntendo Tokyo Koto Geriatric Medical Center, Juntendo University School of Medicine, Tokyo, Japan.
authors.forename: Norio
authors.initials: N
authors.lastname: Murayama
authors.forename: Eizo
authors.initials: E
authors.lastname: Iseki
authors.forename: Ryoko
authors.initials: R
authors.lastname: Yamamoto
authors.forename: Michihiro
authors.initials: M
authors.lastname: Kimura
authors.forename: Ko
authors.initials: K
authors.lastname: Eto
authors.forename: Heii
authors.initials: H
authors.lastname: Arai
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000544:Alzheimer Disease / Q000175:diagnosis*; D001538:Bender-Gestalt Test; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D020961:Lewy Body Disease / Q000175:diagnosis*; D008297:Male; D012720:Severity of Illness Index