A positron emission tomography (PET) scan produces detailed, three-dimensional footage that present how effectively certain parts of your physique are working. The PET scan detects these rays and kinds photographs of the situation. A positron emission tomography (PET) scan is an imaging take a look at that allows your physician to verify for illnesses in your body. A complete-body PET scan provides information about the body’s chemistry and cell perform (metabolism) somewhat than footage of the body’s anatomy or structure as shown by X-ray, ultrasound, CT scans, or MRI.
How long it takes on your physique to totally take up the tracer will depend upon the world of the physique being scanned. Please no train or strenuous activities for 24 hours prior to the scan. Earlier than the scan,Â the radiotracerÂ is injected right into a vein in your arm or hand.
PET-CT scans are each non-invasive and normally painless. The images can clearly present the a part of the physique being investigated, together with any irregular areas, and may spotlight howÂ effectively sure features of the physique are working. The radiotracer becomes quicklyÂ less radioactive over time and will normally be handed out of your physique naturallyÂ within just a few hours.
This radioactive material accumulates in the organ or space of your body being examined, the place it gives off a small quantity of energy in the type of gamma rays. Glucose (sugar) is a standard substance the physique needs in an effort to function.