Prevalence and characteristics of coronary artery anomalies (CAAS) in 3016 symptomatic adult participants undergoing coronary computed tomography angiography (CCTA): A single-center retrospective study in Iran

According to angiographic findings, the prevalence of coronary anomalies is 0.9%-1.3%, while with CT angiography it is reported to be 0.43%-5.79% 4 6. CT coronary angiography is an accurate diagnosis tool for detecting coronary anomalies and studies have shown its superiority over invasive coronary angiography. [...]the reason for the different statistics values of the prevalence of CAAs is the imaging method used. According to Angelini's classification which is considered the most comprehensive classification of CAAs, Anomalous origin of the coronary artery from the opposite sinus (ACAOS) was the most prevalent type of coronary artery anomaly found in our study with an estimated prevalence of 829 per 100000 (28 cases, 73.4%). Single coronary arteries, anomalous origin of the left coronary artery from pulmonary artery (ALCAPA) and coronary artery fistulas are other types of CAAs that might be associated with cardiac events and these anomalies are all best diagnosed with cardiac CT. [...]CCTA can be considered as an accurate, rapid, and relatively safe method for identifying these high-risk groups, even if they are asymptomatic.