PET scans, or positron emission tomography scans, are imaging tests that present molecular activity contained in the body. These tracers are either swallowed, inhaled, or injected into a vein in your arm relying on what a part of the body is being examined. A nuclear medicine technologist will clarify the procedure to you and acquire your written consent for the PET scan. Larger detail with a better level of accuracy; as a result of both scans are performed at one time with out the affected person having to alter positions, there is less room for error.
By itself, a CT scan uses particular X-ray gear to provide footage of the inside of the physique. A PET scan may present tumors and other most cancers indicators. PET works by utilizing a special camera that detects positrons emitted by the radioactive tracer within the organ or tissue being examined.
For neurologic problems, a PET scan can be used to measure mind exercise in relation to areas of high and low radioactivity. After sitting quietly for forty five minutes, you can be requested to lie comfortably on a table that passes through the PET scanner. CT imaging makes use of special x-ray equipment, and in some instances a contrast materials , to produce a number of photos or footage of the inside of the physique.
Nuclear medication imaging is often carried out on an outpatient basis, but is often performed on hospitalized sufferers as nicely. A PET scan may detect biochemical adjustments in an organ or tissue which are indicators of a disease course of before physical changes associated to the disease will be seen with other imaging tests.
The benefit of PET scanning is that it may present more intensive disease than the CT or MRI. The amount of radiation received is lower than from a typical CT scan. The radioactive tracers are attached to a chemical substance that a selected organ or tissue makes use of throughout metabolism.