This was a retrospective cohort study. The inclusion criteria were: 1) Age ? 18 years old; 2) Patients who had chest pain and underwent CCTA; 3) Patients who had two or more risk factors of coronary heart disease (male > 45 years old, female > 55 years old; history of smoking; history of diabetes; high-density lipoprotein < 1.0 mmol/L; history of hypertension; family history of coronary heart disease occurred in < 55 years old males or < 65 years old women in first-degree relatives).
The fresh new different standards have been below: 1) Patients that has a track record of coronary revascularization or even more than 50% stenosis regarding crosssectional luminal town revealed by CCTA. 2) People who had arrhythmia, serious cardiac description (NYHA?III education); 3) Renal lack (serum creatinine approval rates, Scr > 120 ml/min); 4) Hyperthyroidism; 5) Compare representative allergy records or even the iodine allergic reaction sample try self-confident; 6) Poor quality out-of CCTA photographs.
This study is authorized by the Organization Review Board of your facilities (the ethics matter:2019LW-006).