Extracardiac Findings on Cardiac CTA

Coronary computed tomographic angiography (CCTA) is a powerful, noninvasive tool to evaluate coronary anatomy, plaque, and areas of stenosis in the coronary arteries. Technological advancements have now given CCTA diagnostic capabilities that approach those of invasive coronary angiography, which remains the gold standard for coronary artery imaging. CCTA is often used in an outpatient setting to evaluate for coronary artery disease as well as graft patency following coronary artery bypass. Recent studies have shown that CCTA can effectively rule out acute coronary syndrome in low to intermediate-risk patients, who present with suspicious chest pain. The use of CCTA is on the rise, and it is important to recognize its diagnostic capabilities not only related to the coronary arteries and heart, but also with respect to extracardiac structures.