A 46-year-old member asked:
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Does a myocardial perfusion scan show blockage in the heart?

1 doctor answer
Dr. Mark Rasak
32 years experience in Cardiology
Yes: The myocardial perfusion scan is designed to show if there is a blockage in the coronary arteries. The tracer (thallium lets say) follows the blood in the heart and seen on a camera.If a blockage is present it will show up as a dark spot where the tracer couldnt get to.The next step is a heartcath usually, these scans arent a 100% and you can have false positives and negetives.
Answered on Oct 21, 2011

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