title: [Gated single photon emission computer tomography for the detection of silent myocardial ischemia].
abstract: BACKGROUND
  Asymptomatic patients with severe coronary atherosclerosis may have a normal resting electrocardiogram and stress test.
  
  
  OBJECTIVE
  To assess the yield of Gated Single Photon Emission Computer Tomography (SPECT) for the screening of silent myocardial ischemia in type 2 diabetic patients.
  
  
  METHODS
  Electrocardiogram, stress test and gated-SPECT were performed on 102 type 2 diabetic patients aged 60+/-8 years without cardiovascular symptoms. AH subjects were also subjected to a coronary angiography whose results were used as gold standard.
  
  
  RESULTS
  Gated-SPECT showed myocardial ischemia on 26.5% of studied patients. The sensibility, specificity accuracy, positive predictive value and negative predictive value were 92.3%, 96%, 95%, 88.8%, 97.3%, respectively. In four and six patients ischemia was detected on resting electrocardiogram and stress test, respectively. Eighty percent of patients with doubtful resting electrocardiogram results and 70% with a doubtful stress test had a silent myocardial ischemia detected by gated-SPECT There was a good agreement between the results of gated-SPECT and coronary angiography (k=0.873).
  
  
  CONCLUSIONS
  Gated-SPECT was an useful tool for the screening of silent myocardial ischemia.
authors.affiliation: Centro de Investigaciones Clínicas, Ciudad de La Habana, Cuba. yamilepq@infomed.sld.cu
authors.forename: Yamilé
authors.initials: Y
authors.lastname: Peña Q
authors.forename: Marco Antonio
authors.initials: MA
authors.lastname: Coca P
authors.forename: Juan Felipe
authors.initials: JF
authors.lastname: Batista C
authors.forename: José
authors.initials: J
authors.lastname: Fernández-Britto R
authors.forename: Rodobaldo
authors.initials: R
authors.lastname: Quesada P
authors.forename: Andria
authors.initials: A
authors.lastname: Peña C
mesh_terms: D003924:Diabetes Mellitus, Type 2 / Q000150:complications*; D004562:Electrocardiography / Q000379:methods; D005080:Exercise Test; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D017202:Myocardial Ischemia / Q000175:diagnosis / Q000000981:diagnostic imaging*; D015203:Reproducibility of Results; D015899:Tomography, Emission-Computed, Single-Photon / Q000592:standards*