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.
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.
Authors: T C Gerber; P F Sheedy; M R Bell; D L Hayes; J A Rumberger; T Behrenbeck; D R Holmes; R S Schwartz Journal: Int J Cardiovasc Imaging Date: 2001-02 Impact factor: 2.357
Authors: P J de Feyter; P W Serruys; K Nieman; N Mollet; F Cademartiri; R J van Geuns; C Slager; A F W van der Steen; R Krams; J A Schaar; P Wielopolski; P M T Pattynama; A Arampatzis; A van der Lugt; E Regar; J Ligthart; P Smits Journal: Neth Heart J Date: 2003-09 Impact factor: 2.380