Direct comparison between coronary computed tomography and invasive angiography for calculation of SYNTAX score.

2013 
Abstract We aimed to test the feasibility of calculating SYNTAX score from coronary computed tomographic angiography (CCTA) compared to from invasive coronary angiography (ICA). SYNTAX score was independently and blindly calculated from CCTA and from ICA in 104 patients, age 57±10, with significant (>50%) stenoses in 1.7±0.7 vessels. The level of agreement was assessed by Cohen's kappa. Agreement between ICA and CCTA for conventional vessel-based analysis (presence of >50% stenosis per vessel) was substantial with kappa=0.66 and sensitivity, specificity and accuracy of 74%, 90% and 80%, respectively. The mean SYNTAX score was 14.2±10.0 by ICA and 10.3±6.9 by CCTA, with a significant underestimation of 3.9±8.2 by CCTA (p
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