Harvard Heart Letter

High-tech heart scans: Who might need one?

Computed tomography angiography (CTA) is one of several techniques used to evaluate people with chest pain that’s thought to result from coronary artery disease. It provides detailed views of the heart’s arteries. Compared with other tests, such as exercise stress tests with nuclear imaging, CTA takes less time and is easier to endure. But it requires radiation exposure and provides no clear long-term advantages in terms of preventing heart attacks or similar problems.
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