The predictive value of coronary artery CTA quantitative indexes on long-term cardiovascular events in patients with coronary heart disease

Objective To investigate the value of computed tomography (CTA) quantitative indexes in predicting major adverse cardiovascular events (MACE) in patients with coronary heart disease. Methods From September 2016 to November 2017, 251 patients with coronary heart disease diagnosed and treated in our hospital were selected and followed up for 1 years, they were divided into observation group and control group according to whether MACE occurred, Coronary CTA indexes of the two groups were compared, including the total plaque volume (TPV), calcified and non-calcified plaque volume (CPV/NCPV), lesion length, plaque burden and napkin-ring sign. Cox regression was used to analyze the independent risk factors of MACE, and ROC curve was used to evaluate the diagnostic efficacy of CTA quantitative indicators on MACE. Results In this study, 47 patients (19.67%) developed MACE. There were significant differences in TPV, CPV, NCPV, lesion length, plaque burden and napkin-ring sign between the two groups (all P＜0.05). TPV and plaque burden were independent risk factors for MACE (OR=1.137，P＜0.001；OR=1.075，P=0.002). ROC curve showed the AUC areas single diagnosed of TPV and plaque burden in MACE were 0.764, 0.796, the combined diagnosis was 0.860, diagnostic efficacy and sensitivity were significantly better than single one (all P＜0.05). Conclusion TPV and plaque burden in coronary artery CTA have good predictive value for the occurrence of MACE in patients with coronary heart disease.