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.

Related Questions

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

Perfusion scans. The main risks to these studies relate to the exercise stress used and to the radiation exposure. In general both are very well controlled and the complications and negative outcomes to these studies are very few and uncommon in good labs. The commonest side effects are with Persantine and Adenosine used to simulate exercise. Regadenoson a newer agent has few side effects. Read more...
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. Read more...

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

Cardiac blood supply. A cardiac perfusion scan measures the amount of blood supplied to your heart muscle. Radiotracers such as thallium or technetium sestamibi are injected intravenously and travel through blood to heart muscle. Two sets of images are made during rest and exercise and compared. Indications for this study include chest pain, previous heart attack, heart surgery and coronary artery disease. Read more...
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. Read more...

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

Myocardial perfusion. A myocardial perfusion scan is done to evaluate the blood flow and distribution of blood flow within the heart. Abnormalities can be associated with obstructed blood flow to the heart or infarction/scarring of the heart. Read more...
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. Read more...

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. Read more...
Assess risk. 1. Determine blood flow to the heart at rest and at stress. The difference between these two can help determine risk of a major cardiac event such as a heart attack. 2. Determine cardiac size. 3. Determine cardiac function (left ventricular ejection fraction). 4. Determine exercise capacity. 5. Determine electrical (ECG) response to stress. These factors are used to help guide medical therapy. Read more...
Cardiac blood supply. A cardiac perfusion scan measures the amount of blood supplied to your heart muscle. Radiotracers such as thallium or technetium sestamibi are injected intravenously and travel through blood to heart muscle. Two sets of images are made during rest and exercise and compared. Indications for this study include chest pain, previous heart attack, heart surgery and coronary artery disease. Read more...

Is it safe to smoke after a myocardial perfusion scan thallium scan cardiac nuclear imaging?

It is never safe to . Although it is no more risky to smoke after a scan, it is never safe to smoke. Read more...
No. It is never "safe" to smoke! but there is no particularly increased risk due to the thallium perfusion scan. So go ahead and smoke but take serious measures to stop, soon. Read more...
Well... Since you had a cardiac nuclear scan, I assume your doctors were looking for coronary artery disease. You seem to be a smoker, which makes artery disease worse. So smoking is not a good thing for you, and you should try to stop. Having said that, you are probably not in any more immediate risk for heart problem for smoking after the nuclear exam. Long term risks are greater with smoking. Read more...