why are pet scans done
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Frequently Asked Questions Positron Emission Tomography (PET) and Computed Tomography (CT) scans are both standard imaging tools that physicians use to pinpoint disease states in the body. A PET scan demonstrates how organs and tissues are functioning at a very early stage in a disease, often before structural changes take place.
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- A PET scan is a unique type of imaging test that reveals physiologic processes in organs such as the lung. The PET scans were examined by 12 raters, 10 neurologists, and two psychiatrists, none of whom were informed of any details of the patients' cases.
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PET Scan PET stands for positron emission tomography. A PET scan produces three-dimensional, colour images of your body using radionuclides. See separate leaflet called Radionuclide (Isotope) Scan for more information on radionuclides. PET scans show where cells are particularly active.
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PET/CT PET/CT. Positron Emission Tomography (PET) is a sophisticated imaging technique that allows our radiologists to view organ function and tissue metabolism—how rapidly cells grow. A combined PET/CT exam merges a CT scan that provides detailed anatomy with a PET scan that shows organ and tissue function. PET/CT scans are valuable in identifying certain diseases, particularly cancers, often before they are visible on other imaging tests.
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- Positron emission tomography (PET) scanning combined with CTA is on the horizon for the detection of heart disease. PET scans are a form of nuclear medicine -- nuclear being the small dose of radioactive material you are injected with before the test (the radiation exposure is similar to that of a standard X-ray). As with CTA, PET involves a doughnut-like scanning device that takes the images.
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- 1 PET scans are often used to diagnose a condition or how a condition is developing.  They are used alongside X-rays or MRI (magnetic resonance imaging) scan to diagnose or provide more insight into a condition.
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PET Scan in Germany A PET scan (positron emission tomography) is an imaging test that can help reveal how your tissues and organs are functioning. To show this chemical activity, a small amount of radioactive material must enter your body. The precise type of radioactive material, and its delivery method, depends on which organ or tissue is being studied by the PET scan. The radioactive material may be injected into a vein, inhaled or swallowed.
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Positron emission tomography Positron-emission tomography (PET)[1] is a nuclear medicine functional imaging technique that is used to observe metabolic processes in the body. The system detects pairs of gamma rays emitted indirectly by a positron-emitting radionuclide (tracer), which is introduced into the body on a biologically active molecule.
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Overview PET scans of the brain for Alzheimer's disease. A positron emission tomography (PET) scan is an imaging test that helps reveal how your tissues and organs are functioning.A PET scan uses a radioactive drug (tracer) to show this activity.ET scans of the brain for Alzheimer's disease. A positron emission tomography (PET) scan is an imaging test that helps reveal how your tissues and organs are functioning.
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Overview The tracer collects in areas of your body that have higher levels of chemical activity, which often correspond to areas of disease. On a PET scan, these areas show up as bright spots. A PET scan is useful in revealing or evaluating several conditions, including some cancers, heart disease and brain disorders.
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- 1 PET is an acronym for positron emission tomography. 2  PET scans are often used to diagnose a condition or how a condition is developing.  They are used alongside X-rays or MRI (magnetic resonance imaging) scan to diagnose or provide more insight into a condition.
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PET, CT and PET/CT Scan Houston TX PET/CT also can show how advanced a disease has become. PET, or positron emission tomography, provides the metabolic information. The computed tomography (CT) scan simultaneously takes multiple images to create a map of the body. This helps pinpoint the location of cancerous tumors or metabolic activity in the brain.
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Frequently Asked Questions CT and Magnetic Resonance Imaging (MRI) scans are anatomic imaging modalities, which means that they look at the size and shape of organs and body structures. A PET scan looks at how organs and tissues are functioning. The information collected from a PET scan is different from any other test that is available.2.
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PET Scans After Cancer Treatment To be extra sure, some doctors will order imaging tests, known as PET scans. They are often combined with CT scans. These scans take pictures of your body where cancer might be growing. But you may not need the tests. And their risks may be greater than the benefits. Here’s why: PET and PET-CT scans usually don’t help people who have completed cancer treatments and don’t have symptoms. For most cancers, these tests don’t help you live longer or with a better quality of life.
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Positron Emission Tomography - Computed Tomography (PET/CT) Positron emission tomography (PET) uses small amounts of radioactive materials called radiotracers, a special camera and a computer to help evaluate your organ and tissue functions. By identifying body changes at the cellular level, PET may detect the early onset of disease before it is evident on other imaging tests.
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Positron emission tomography (PET) scan A PET scan may be done to: 1  diagnose cancer (in certain cases) 2  determine the stage (find out how far the cancer has spread and if it is present in other organs and tissues)  PET scan is used if other imaging tests are unclear, inconclusive or surgical procedures are not possible.
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Positron Emission Tomography (PET) What is a cardiac PET scan? A PET scan of the heart is a noninvasive nuclear imaging test. It uses radioactive tracers (called radionuclides) to produce pictures of your heart. Doctors use cardiac PET scans to diagnose coronary artery disease (CAD) and damage due to a heart attack. PET scans can show healthy and damaged heart muscle.
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PET Scans After Cancer Treatment Your doctor will watch you closely for many years to check for a possible return of the cancer. To be extra sure, some doctors will order imaging tests, known as PET scans. They are often combined with CT scans. These scans take pictures of your body where cancer might be growing. But you may not need the tests.
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PET-CT 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 single ...
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PET scan PET scan stands for Positron Emission Tomography, an imaging exam that is designed to help reveal the way that the tissues and the organs are functioning. This is a medical diagnostic exam that requires the use of a small amount of radioactive material in order for this activity to be apparent.
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Positron emission tomography Positron emission tomography (PET) is a nuclear medicine, functional imaging technique that is used to observe metabolic processes in the body. The system detects pairs of gamma rays emitted indirectly by a positron-emitting radionuclide (tracer), which is introduced into the body on a biologically active molecule.
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- positron emission tomography pet or pet scan is a specialized radiology procedure used to examine various body tissues to identify certain conditionspet may also be used to follow the progress of the treatment of certain conditionsositron emission tomography pet or pet scan is a specialized radiology procedure used to examine various body tissues to identify certain conditions
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PET Scan Cost and PET Scan Procedures Information PET Scan Introduction and Cost Information PET scans have become very popular because no other imaging technology shows the internal chemistry of the body so well. A PET scan has the unique ability to identify chemical and metabolic changes in diseases such as cancer before anatomic and structural changes which are detected by other imaging technologies have time to develop.
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- a pet scan uses a very small amount of radioactive drug to show how body tissues are working a pet ct scan allows your doctor to see any changes in the activity of cells and know exactly where the changes are happening it helps your doctor to diagnose and stage a cancerthis helps doctors to decide which treatment you need and also see whether it is working pet ct scan combines a ct scan and a pet scan into one to give more detailed information about your cancer a ct scan takes a series of x rays from all around your body and uses a computer to put them together
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PET scan A PET scan can show how body tissues are working, as well as what they look like. It can help to diagnose and stage a cancer. This helps your doctor decide which treatment you need and whether your treatment is working.A PET scan can also sometimes tell if an area in the body is scar tissue or an active cancer. PET scan can show how body tissues are working, as well as what they look like. It can help to diagnose and stage a cancer. This helps your doctor decide which treatment you need and whether your treatment is working.