CCTA: Cost-effective, noninvasive alternative to invasive cardiac catheterization for the evaluation of significant CAD

Non-invasive coronary computed tomography angiography (CTA) is a cost-effective alternative to invasive cardiac catheterization in the care of patients who have positive stress test results but a less than 50 percent chance of actually having significant coronary artery disease (CAD), according to a study in the May issue of the American Journal of Roentgenology. CAD is a narrowing of the blood vessels that supply blood and oxygen to the heart. If left untreated, it can lead to a heart attack.

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