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What are some alternative tests for heart blockages when routine tests come back normal?

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Quick Answer

Cardiac perfusion scans, echocardiograms and computerized tomography angiograms are some alternate tests for heart blockages, according to WebMD. A heart blockage, or coronary heart disease, occurs when plaque builds up in the arteries, and the narrowed arteries restrict blood flow to the heart, explains MyHeart.net.

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Full Answer

During a cardiac perfusion scan, a physician injects a radioactive tracer into the patient’s bloodstream and uses a camera to detect areas of poor blood flow, states WebMD. An echocardiogram generates images of the heart using sound waves, and a computerized tomography angiogram takes an X-ray image of the heart and surrounding arteries, explains Mayo Clinic.

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