Author/Authors :
Ropers، نويسنده , , Dieter and Rixe، نويسنده , , Johannes and Anders، نويسنده , , Katharina and Küttner، نويسنده , , Axel and Baum، نويسنده , , Ulrich and Bautz، نويسنده , , Werner and Daniel، نويسنده , , Werner G. and Achenbach، نويسنده , , Stephan، نويسنده ,
Abstract :
Eighty-four patients with suspected coronary artery disease were studied to determine the accuracy of noninvasive coronary angiography using a multidetector computed tomographic scanner with 64- × 0.6-mm collimation and 330-ms gantry rotation. All coronary artery segments with a diameter >1.5 mm were assessed with respect to stenoses >50% decreased diameter. Results were compared with quantitative coronary angiographic findings. After exclusion of unevaluable coronary segments (4%), multidetector computed tomography demonstrated a sensitivity of 93%, a specificity of 97%, and a negative predictive value of 100% in a per-segment analysis. In a per-artery analysis, 15 of 336 arteries (4%) were unevaluable. Sensitivity and specificity in evaluable arteries were 95% and 93%, respectively. In a per-patient analysis (81 of 84 patients included), sensitivity and specificity were 96% and 91%, respectively.
