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Nuclear medicine is a specialized area of radiology. It uses very small amounts of a radioactive substance (radionuclide or radio-tracer) for health research, diagnosis, and treatment of various conditions, including cancer. Nuclear medicine imaging is a mix of many different disciplines. These include chemistry, physics, mathematics, computer technology, and medicine.
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A tiny amount of the radionuclide is used during the procedure. The radionuclide is also known as a radiopharmaceutical or radioactive tracer. It is absorbed by body tissue. There are several different types of radionuclides. These include forms of the elements technetium, thallium, gallium, iodine, and xenon. The type of radionuclide used will depend on the type of study and the body part being checked.
After the radionuclide has been given and has collected in the body tissue understudy, radiation will be given off. A radiation detector can pick up this radiation. The most common type of detector is the gamma camera. Digital signals are made and stored by a computer when the gamma camera detects the radiation.
With a nuclear scan, the healthcare provider can assess and diagnose many conditions, such as tumors, infections, or organ enlargement. A nuclear scan may also be used to check organ function and blood circulation.
In planar imaging, the gamma camera stays still. The resulting images are 2-D. Single photon emission computed tomography (SPECT) makes detailed images of an organ as the gamma camera moves around you. These images are like those done by a CT scan. In certain cases, 3-D images can be done using the SPECT data.
We have the state of the art SIEMENS SYMBIA EVO EXCEL SPECT scanner
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