Positron emission tomography–computed tomography (better known as PET–CT or PET/CT) is a nuclear medicine technique which combines, in a single gantry, a positron emission tomography (PET) scanner and an x-ray computed tomography (CT) scanner, to acquire sequential images from both devices in the same session, which are combined into a ...

During a positron emission tomography (PET) scan, you lie on a narrow table that slides into a doughnut-shaped hole. The scanner takes about 30 minutes to produce detailed images of metabolic activity in your tissues and organs.

Positron emission tomography, also called PET imaging or a PET scan, is a diagnostic examination that involves getting images of the body based on the detection of radiation from the emission of positrons. Positrons are tiny particles emitted from a radioactive substance administered to the patient.

Oct 29, 2021 · Learn how a PET/CT scan is used for cancer diagnosis and treatment, how long it takes, what it shows, and the benefits and risks of this type of imaging.

Positron emission tomography (PET) scans detect early signs of cancer, heart disease and brain conditions. It involves an injection of a safe radioactive tracer that helps detect diseased cells.

Current and accurate information for patients about PET/CT. Learn what you might experience, how to prepare for the exam, benefits, risks and much more.

Jun 19, 2024 · PET-CT imaging is a form of dual-modality imaging that utilizes the advantages of both positron emission tomography (PET) and computed tomography (CT). PET imaging excels at detailing physiologic or biologic phenomena through the administration of positron-emitting radiopharmaceuticals.

Oct 13, 2024 · Positron emission tomography (PET) is an imaging test that detects changes in metabolism and your body's biochemistry. The patterns of these changes can help diagnose different diseases. PET scans use various radioactive drugs called radiotracers that are injected into your bloodstream.

Jul 1, 2023 · CT scans and PET scans are important tools for medical imaging with specific benefits, uses, risks, and limitations. From the broadest perspective, CT scans help detect structural abnormalities in the body, while PET scans detect functional abnormalities in the body.

The main difference between a positron emission tomography (PET) scan and a computed tomography (CT) scan is that a PET scan highlights the abnormal metabolic activity of cancer cells, whereas a CT scan then precisely shows the location of the tumor cells.