title: Coronary artery calcium by digital cinefluoroscopy in patients with pain suggestive of an acute coronary syndrome.
abstract: BACKGROUND
  Detection of coronary calcium may be a useful noninvasive approach for detecting coronary artery disease (CAD) in subjects presenting to the emergency department with chest pain.
  
  
  OBJECTIVE
  We tried to assess the diagnostic value of coronary artery calcium (CAC) detection by digital cinefluoroscopy in patients with new-onset chest pain suggestive of an acute coronary syndrome.
  
  
  METHODS
  In 97 consecutive patients (70 men, 27 women, mean standard deviation [SD] age 55 (11) and 60 (8) years, respectively), with new-onset chest pain suggestive of an acute coronary syndrome, nondiagnostic electrocardiogram, and normal initial creatine kinase (CK)-MB, digital cinefluoroscopy was performed for CAC detection.
  
  
  RESULTS
  All patients underwent routine clinical evaluation with treadmill exercise test, thallium scintigraphy, dobutamine stress echocardiography, and coronary angiography, as needed clinically and blinded to the cinefluoroscopy results. Coronary artery calcium was present in 27 of 33 (81.8%) of patients with and in 10 of 64 (15.6%) of patients without CAD, p < 0.0001. The presence of CAC had 82% sensitivity, 84% specificity, 73% positive predictive value, and 90% negative predictive value for CAD diagnosis (odds ratio = 24.3, 95% confidence interval 7.98-73.94).
  
  
  CONCLUSIONS
  In patients with acute chest pain, nondiagnostic electrocardiogram and normal initial enzyme evaluation, CAC detection by digital cinefluoroscopy appears to have high sensitivity, specificity, and negative predictive value for CAD diagnosis.
authors.affiliation: Department of Medicine, Division of Cardiology, University of Patras Medical School, Patras, Greece. dalex@med.upatras.gr
authors.forename: Dimitrros
authors.initials: D
authors.lastname: Alexopoulos
authors.forename: Christos
authors.initials: C
authors.lastname: Stathopoulos
authors.forename: Avraam
authors.initials: A
authors.lastname: Kotrsaridis
authors.forename: John
authors.initials: J
authors.lastname: Chiladakis
authors.forename: George
authors.initials: G
authors.lastname: Hahalis
mesh_terms: D000367:Age Factors; D015415:Biomarkers / Q000032:analysis; D002118:Calcium / Q000032:analysis*; D002637:Chest Pain / Q000000981:diagnostic imaging; D002933:Cineradiography / Q000379:methods*; D017023:Coronary Angiography / Q000379:methods; D003324:Coronary Artery Disease / Q000000981:diagnostic imaging*; D003331:Coronary Vessels / Q000737:chemistry*; D005260:Female; D005471:Fluoroscopy; D006801:Humans; D008297:Male; D008875:Middle Aged; D016017:Odds Ratio; D012680:Sensitivity and Specificity; D012737:Sex Factors; D013577:Syndrome
chemical_list: D015415:Biomarkers; D002118:Calcium