Positron emission tomography scan - Mayo Clinic
WEBA positron emission tomography (PET) scan is an imaging test that can help reveal the metabolic or biochemical function of your tissues and organs. The PET scan uses a radioactive drug called a tracer to show both typical and atypical metabolic activity.
PET Scan: What It Is, Types, Purpose, Procedure & Results
WEBOct 19, 2022 · A positron emission tomography (PET) scan is an imaging test that produces images of your organs and tissues at work. The test uses a safe, injectable radioactive chemical called a radiotracer and a device called a PET scanner.
Positron emission tomography - Wikipedia
WEBPositron emission tomography (PET) [1] is a functional imaging technique that uses radioactive substances known as radiotracers to visualize and measure changes in metabolic processes, and in other physiological activities including blood flow, regional chemical composition, and absorption.
Comparing MRI, CT, and PET Scans: How They Work and When …
WEBPET scan images can detect cellular changes in organs and tissues earlier than MRI and CT scans. A PET scan and CT scan can be performed simultaneously (PET/CT) and produce 3D images that allow for a more accurate diagnosis. Each type of imaging has its strengths and is chosen based on the specific clinical needs. Combining these technologies ...
Positron Emission Tomography (PET) - Johns Hopkins Medicine
WEBPET is a type of nuclear medicine procedure that measures metabolic activity of the cells of body tissues. Used mostly in patients with brain or heart conditions and cancer, PET helps to visualize the biochemical changes taking place in the body.
PET/CT - Positron Emission Tomography/Computed Tomography
WEBPositron emission tomography, also called PET imaging or a PET scan, is a type of nuclear medicine imaging. Nuclear medicine uses small amounts of radioactive material called radiotracers. Doctors use nuclear medicine to diagnose, evaluate, and …
PET Scan: Definition, Purpose, Procedure, and Results - Healthline
WEBDec 16, 2021 · A positron emission tomography (PET) scan is an imaging test that allows your doctor to check for diseases in your body. The scan uses a special dye containing radioactive tracers.
PET Scan: Purpose, Procedure, and Side Effects - Verywell Health
WEBMay 7, 2024 · A PET scan is an imaging test that can help detect diseases based on changes in your body's metabolism. It involves a radioactive tracer that is injected into your bloodstream. The scanner measures metabolic activity based on how much or little of the tracer is taken up by cells.
PET Scan (Positron Emission Tomography) - WebMD
WEBMar 12, 2023 · A PET scan (also known as positron emission tomography and PET/CT) is a type of imaging study that can show doctors what’s happening in your body and how it’s working. It’s different from...
Positron Emission Tomography (PET Scan) - Harvard Health
WEBFeb 2, 2023 · A positron emission tomography, or PET, scan is an imaging technique that uses radioactive tracers attached to sugar molecules. The scan can detect changes in the body's metabolism and chemical activities. A PET scan is often done in conjunction with a CT scan. The combination provides a color-coded image of …