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Doctor insights on: Myocardial Perfusion Scan With Exercise

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Dr. Guido Davidzon
14 Doctors shared insights

Myocardial Perfusion Scan With Exercise (Overview)

Myocardial perfusion imaging looks at blood flow to the left ventricle. This is primarily accomplished using nuclear techniques such as pet or spect using radiotracers such as tl-201, tc-99m, or n-13 ammonia. When it is done with exercise, the myocardial perfusion scan shows blood flow during exercise, and usually compares that to perfusion at rest in order to evaluate for inducible ischemia.


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What is the definition or description of: myocardial perfusion scan with exercise?

What is the definition or description of: myocardial perfusion scan with exercise?

Cardiac Exam: Myocardial perfusion imaging looks at blood flow to the left ventricle. This is primarily accomplished using nuclear techniques such as pet or spect using radiotracers such as tl-201, tc-99m, or n-13 ammonia. When it is done with exercise, the myocardial perfusion scan shows blood flow during exercise, and usually compares that to perfusion at rest in order to evaluate for inducible ischemia.

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Dr. Guido Davidzon
14 Doctors shared insights

Myocardial Perfusion Scan With Exercise (Overview)

Myocardial perfusion imaging looks at blood flow to the left ventricle. This is primarily accomplished using nuclear techniques such as pet or spect using radiotracers such as tl-201, tc-99m, or n-13 ammonia. When it is done with exercise, the myocardial perfusion scan shows blood flow during exercise, and usually compares that to perfusion at rest in order to evaluate for inducible ischemia.


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What is the purpose of a myocardial perfusion scan?

What is the purpose of a myocardial perfusion scan?

Nuclear stress test: This is a specialized form of stress test used to confirm the presence of coronary artery disease in patients suspected of having this problem. It uses a low-level nuclear tracer to assess blood flow to the heart muscle before and after exercise-induced stress. In patients who cannot exercise, other pharmacologic means can be used such as adenosine, lexiscan, persantine, or dobutamine.

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What is the function of a myocardial perfusion scan?

What is the function of a myocardial perfusion scan?

Blood flow to heart: It shows blood flow to the heart. It can show old scar of a heart attack or heart muscle that is not getting enough blood, which could mean a future heart attack.

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Can I eat food before having myocardial perfusion scan?

Can I eat food before having myocardial perfusion scan?

No: No because the blood flow to stomach increased and it makes the image less accurate.

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Can you get results of your myocardial perfusion scan the same day?

Can you get results of your myocardial perfusion scan the same day?

Sometimes: It is possible but more often you will get your results the next business day.

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Why would someone be scanned both front side and back during the myocardial perfusion scan?

Why would someone be scanned both front side and back during the myocardial perfusion scan?

Complete imaging: The heart is a 3 dimensional structure and the images are 2 dimensional. To completely visualize the entire heart, you need more than one view. Hard to fully describe the moon without flying around to the back side.

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Are there any side affects after having a myocardial perfusion scan if so can you tell me please?

Are there any side affects after having a myocardial perfusion scan if so can you tell me please?

Radiation...: Depending on what radiotracer is used, you will be exposed to a small amount of radiation but the benefits of the test should outweigh the risks. Are you having pharmacologic or exercise test? Some of the pharmacologic agents can cause some side effects such as bronchoconstriction but a medication called aminophylline can usually be administered to reverse the side effects.

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What are the risks in having a myocardial perfusion scan?

What are the risks in having a myocardial perfusion scan?

Stress associated: A myocardial perfusion scan is performed in two steps. One injection of a radiotracer at rest and another at stress (either treadmill or pharmacological stress test with adenosine, regadenoson, dobutamine, dipyridamole). Only few skin reactions have been reported with the radiotracer injection. Risks are more associated with the stress used for the test such has angina, headache, nausea...

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Can you consumer alcohol after a myocardial perfusion scan?

Can you consumer alcohol after a myocardial perfusion scan?

Yes: Of course, I am not recommending excessive amounts of alcohol with or without the scan.

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Is it safe to be around kids after a myocardial perfusion scan?

Is it safe to be around kids after a myocardial perfusion scan?

Small exposure: The doses of radiopharmaceuticals used for these scans are usually relatively low dose. However thallium (half life 2.7 days) gives more radiation than technetium sestamibi (half life 6 hrs).Radiation reduction depends mainly on two factors time and distance. If you do not stay close to child for prolonged time then radiation exposure is reduced. Growing children more sensitive to radiation.

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What is the point of a myocardial perfusion scan [nuclear test]?

What is the point of a myocardial perfusion scan [nuclear test]?

Cardiac imaging...: The myocardial perfusion scan is performed mostly to detect ischemia. It can also detect infarction (heart attack) as well as ejection fraction, wall motion abnormalities, and ventricular volumes.

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What is the point of a myocardial perfusion scan [nuclear test]?

What is the point of a myocardial perfusion scan [nuclear test]?

Cardiac stress test..: A myocardial perfusion scan is used to detect ischemia or infarction (heart attack) and also to evaluation cardiac function (ejection fraction) and ventricular volumes. If there is significant ischemia sometimes a stent can be placed to prevent infarction.

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What are nursing interventions after a myocardial perfusion scan?

What are nursing interventions after a myocardial perfusion scan?

Minimal: 1. Encourage good hydration to encourage washout of the tracer from the kidneys. Be careful against over-hydration in cardiac patients. 2. Rest - usually the patient will have undergone an exercise or pharmacologic stress test, and will be tired. 3. As in any cardiac patient, close monitoring is recommended.

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Could you go through the airport scanners after the myocardial perfusion scan?

Could you go through the airport scanners after the myocardial perfusion scan?

Indeed: However it would be a good idea to ask your cardiologist for a letter attesting to your test, the time, the isotope used, the half-life of that isotope, etc. The most commonly used isotope is technitium sestamibi 99 which has a half-life of only 6 hours, however when this radioactive isotope is in short or limited supply, thallium is often substituted, which has a half life of over 73 hours.

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How does the radioactivity affect someone after the myocardial perfusion scan?

How does the radioactivity affect someone after the myocardial perfusion scan?

Cancer risk: It is important to remember that tests commonly done, such as myocardial perfusion scans, ct scans, and plain xrays, expose you to radiation. It adds up. There is an increased incidence of cancer many years later. We cannot practice medicine without those tests but they should only be performed when absolutely necessary. You should question the need for tests involving radiation exposure.

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Can you tell me about the purpose of a myocardial perfusion scan [nuclear test]?

See blood flow: Myocardial perfusion studies show the pattern of blood flow (perfusion) to the tissue of the heart muscle. The radiotracer goes where the blood goes and this shows how well the tissue is nourished. It can be an indicator of blocked arteries when the perfusion pattern is abnormal.

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Could you tell me what is the purpose of a myocardial perfusion scan [nuclear test]?

Could you tell me what is the purpose of a myocardial perfusion scan [nuclear test]?

CAD: The purpose is to diagnose significant coronary artery disease (CAD). If the scan is positive for ischemic changes in the heart, then you will benefit from aggressive medical treatment, angiographic treatment, or surgery. If the scan is negative (and done properly), your risk for CAD or a significant injury such as a heart attack in the next few years is very low.

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Dr. Heidi Fowler
5,131 Doctors shared insights

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