Souto Rafael Mansur, Dos Santos Alair Augusto Sarmet Moreira Damas, Nacif Marcelo Souto
Hospital Universitário Antônio Pedro - Universidade Federal Fluminense (HUAP-UFF), Niterói, RJ, Brazil.
Radiol Bras. 2022 May-Jun;55(3):156-160. doi: 10.1590/0100-3984.2021.0092.
To compare the degree of coronary stenosis (≥ 50% luminal narrowing) determined by coronary computed tomography angiography (CCTA) with that determined by invasive coronary angiography (ICA), using segment-by-segment analysis.
This was a retrospective study of the records of patients who underwent CCTA and ICA between January 2014 and June 2018 at a general hospital in Brazil. Receiver operating characteristic curve analysis was applied, and the areas under the curve were used in order to assess the overall accuracy of the methods.
The degree of coronary stenosis was evaluated in a total of 844 arterial segments. The diagnostic performance of CCTA was good, with a sensitivity of 82.3%, a specificity of 96.4%, and a negative predictive value of 97.7% (95% CI: 96.5-98.5). In the segment-by-segment analysis, CCTA had excellent accuracy for the left main coronary artery and for other segments.
In clinical practice at general hospitals, CCTA appears to have diagnostic performance comparable to that of ICA.
采用逐段分析方法，比较冠状动脉计算机断层扫描血管造影（CCTA）与有创冠状动脉造影（ICA）测定的冠状动脉狭窄程度（管腔狭窄≥50%）。
这是一项对2014年1月至2018年6月期间在巴西一家综合医院接受CCTA和ICA检查的患者记录进行的回顾性研究。应用受试者操作特征曲线分析，并使用曲线下面积来评估这些方法的总体准确性。
共评估了844个动脉节段的冠状动脉狭窄程度。CCTA的诊断性能良好，敏感性为82.3%，特异性为96.4%，阴性预测值为97.7%（95%CI：96.5 - 98.5）。在逐段分析中，CCTA对左主干冠状动脉和其他节段具有优异的准确性。
在综合医院的临床实践中，CCTA的诊断性能似乎与ICA相当。
