Evaluation of coronary artery stenoses using electron-beam CT and multiplanar reformation

J Comput Assist Tomogr. 1997 Jan-Feb;21(1):121-7. doi: 10.1097/00004728-199701000-00024.


Purpose: We assessed the diagnostic value of electron-beam CT with multiplanar reformation for coronary artery stenoses.

Method: Thirty-seven patients who underwent conventional coronary angiography were evaluated with ECG-triggered thin section electron-beam CT with intravenous contrast enhancement. Multiplanar reformation of a stack of the images was performed to visualize coronary arteries. Two observers blind to the results of conventional coronary angiography independently evaluated the reformatted images.

Results: The sensitivity and specificity for the detection of significant lesions were 100 and 100% in the left main coronary artery, 83 and 84% in the left anterior descending artery, 67 and 96% in left circumflex artery, 63 and 79% in the right coronary artery, and 74 and 94% for total results, respectively. All false-positive results in the left anterior descending artery were caused by wall calcification, and in the right coronary artery, 83% of the false-positive results were caused by small slice gaps in noncalcified segments.

Conclusion: Electron-beam CT was feasible for the detection of coronary artery stenoses. For interpretation of reformatted images, calcification and slice gaps should be taken into consideration.

MeSH terms

  • Aged
  • Aged, 80 and over
  • Contrast Media
  • Coronary Angiography
  • Coronary Disease / diagnostic imaging*
  • Electrocardiography
  • Female
  • Humans
  • Image Processing, Computer-Assisted*
  • Iopamidol
  • Male
  • Middle Aged
  • Sensitivity and Specificity
  • Tomography, X-Ray Computed* / methods


  • Contrast Media
  • Iopamidol