title: Diagnostic accuracy of 128-row multidetector computed tomography coronary angiography in the diagnosis of significant coronary artery stenosis.
abstract: OBJECTIVE
  To evaluate the diagnostic accuracy of 128-multi detector row computed tomography coronary angiography (MDCTCA) with that of invasive conventional coronary angiography (CCA) in the diagnosis of coronary artery disease (CAD).
  
  
  METHODS
  Forty-two consecutive patients underwent both MDCTCA and CCA. All MDCTCA were evaluated for the presence of obstructive coronary stenosis by a blinded experts, and results were compared with quantitative CCA.
  
  
  RESULTS
  Three vessels and five segments were uninterpretable on MDCTCA. Therefore, 123 vessels and 558 segments from 42 patients were analyzed. Sensitivity, specificity and positive and negative predictive values of computed tomography for detecting detect > 50% luminal narrowing were 100%, 91%, 91%, and 100%, respectively, by patient, 98%, 98%, 96%, and 99%, respectively, by vessel, and 98%, 99%, 94%, and 99%, respectively, by segment. Moreover accuracy for detecting > 70% luminal narrowing were excellent by patient, vessel, and segment.
  
  
  CONCLUSIONS
  Noninvasive 128-detector row CT coronary angiography provides high diagnostic accuracy on per segment, vessel, and patient analysis.
authors: Radiology Department, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand. docnaruchao@yahoo.com
authors: Narumol
authors: N
authors: Chaosuwannakit
authors: Songsak
authors: S
authors: Kiatchoosakun
authors: Pattarapong
authors: P
authors: Makarawate
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D017023:Coronary Angiography / Q000379:methods*; D003324:Coronary Artery Disease / Q000175:diagnosis; D023921:Coronary Stenosis / Q000175:diagnosis*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D061330:Multidetector Computed Tomography; D012189:Retrospective Studies