Computed tomographic angiography is a technique that utilizes the intravenous injection of iodinated contrast media to optimally enhance blood vessels throughout the body. These studies are essentially non-invasive and are extremely accurate in the diagnosis of vascular diseases with the utilization of multislice CT scanners. Commonly performed CTA’s include examinations of the brain arteries (circle of Willis), coronary arteries, thoracic aorta, abominal aorta, lower extremeties (runoff study), carotid arteries and renal arteries. Physicians can utilize the information to exclude diseases such as aneurysms, dissections and plaques. These findings can have a significant impact upon medical management and in determining if more invasive procedures or surgery is necessary.