What is a pet scan?

Positron emission tomography (PET) is a special type of imaging test that allows medical experts to see how some tissues and organs in the body work. The most important difference between PET scanning and other imaging tests, such as MRI or CT scanning, is the ability to detect changes in the body at a cellular level rather than after the disease enough to actually affect the surrounding tissue or organs. Scanning can be useful to help detect certain types of cancer, brain disorders, heart problems and other central nervous system conditions.

PET scanning is carried out by injection of a small amount of radioactive chemical into a vein. When chemicals pass through the body, it is absorbed by organs and tissues. During the test, the scanner records energy produced by cells. The computer converts a record into three -dimensional images of the body area, and all changing cells appear on a brighter contrast into any surroundings, normal cells.

Before the procedure, a very small preparation is involved andOutpatient is most often performed. In general, most patients simply receive food or drink limitation for six to 12 hours before the test. Patients of heart, diabetics and other specific patients may have a specific set of directions depending on the purpose of scanning. It takes approximately two hours to complete the test.

PET scanning technology is widely used in oncology because it helps to etap and detect certain types of cancer, including breast, lymphoma and certain types of lung cancer. This is also widely used in medical research.

Especially because of documented technology and equipment, this type of scanning is significantly more expensive than conventional imaging tests, but most of the insurance plans will apply to one if certain conditions are used. Previously, scan support should be checked at their insurance company regarding the benefits and requirements.