A PET scan of the heart is a noninvasive nuclear imaging test. It makes use of radioactive tracers (known as radionuclides) to provide pictures of your coronary heart. Doctors use cardiac PET scans to diagnose coronary artery disease (CAD) and harm because of a coronary heart attack PET scans can present wholesome and broken heart muscle. Doctors also use PET scans to assist find out if you’ll benefit from a percutaneous coronary intervention (PCI) comparable to angioplasty and stenting, coronary artery bypass surgery (CABG) or one other process.
PET scans can reveal modifications in metabolism and how organs and tissues are working. Many cancers will be detected utilizing PET earlier than they are often ‘seen’ utilizing other medical imaging strategies. PET scans can create a picture of the complete physique. This implies that, for some cancers, they can present if (and the place) cancer is spreading to other parts of the physique.
First the radiographer provides you an injection of a really small quantity of radioactive drug (tracer). After the injection you relaxation for about an hour. You then go into the scanning room and lie in your again on a slim bed. The mattress strikes by way of the scanner. The scan can take up to an hour. Areas where the injected radiopharmaceutical gathers (for example, quick-rising most cancers cells) appear ‘brighter’ than normal tissues on the pictures. Read our more detailed articles about particular areas of medication, conditions, nutrition and types of treatment.
The dose of x-rays or radioactive supplies utilized in nuclear medication imaging can differ extensively. Dose will depend on the kind of process and physique half being examined. In common, the dose of radiopharmaceutical given is small and individuals are exposed to low ranges of radiation throughout the check. The potential well being dangers from radiation exposure are low in contrast with the potential advantages. There aren’t any recognized long-time period adverse results from such low-dose exposure.