Coronary artery aneurysms as seen on multidetector computed tomography angiography.

Coronary artery aneurysms (CAA) are present in 1.4-5.3% of the population (Nichols, Lagana, Parwani. Arch Pathol Lab Med 2008; 132:823-828). While angiography remains the gold standard for evaluating CAAs, multidetector computed tomography angiography (MDCTA) is an emerging way of assessing CAAs (Pahlavan and Niroomand. Clin Cardiol 2006;29:439-443). With the increasing clinical utilization of MDCTA, CAAs are often initially diagnosed using this method. Since MDCTA is used largely in lower risk and asymptomatic patients, understanding the etiology and treatment is paramount for clinicians reading these studies.