Imaging in nuclear medicine
How does a nuclear medicine examination work?
The radioactive tracer is introduced into your body by injection, inhalation, or sometimes through food or drink. It then temporarily concentrates in the organ or area your doctor wants to examine. The tracer emits a small amount of radiation, which is detected by a special camera. A computer converts these signals into images that show how the examined area is functioning. Based on these images, a nuclear medicine specialist can diagnose diseases such as cancer, heart conditions, thyroid disorders, bone diseases, and fractures.
Why perform a nuclear medicine examination?
Nuclear medicine examinations provide information about both the structure of the body and the function of specific organs.
Because they show how the body works, certain diseases can be detected earlier than with other tests. This allows the most appropriate treatment to be started as soon as possible, increasing the chances of success.
Your doctor is best placed to decide whether a nuclear medicine examination is appropriate and to choose the type of test that best suits your situation to ensure an accurate diagnosis.
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Most nuclear medicine examinations do not cause pain or side effects.
When a radioactive tracer is injected through an intravenous catheter, you may feel slight discomfort, similar to a blood test, and a cold sensation in your arm. If the tracer is inhaled, the experience is similar to breathing normal air. When taken through food or drink, it usually has little or no taste.
It is important to remain still during imaging, as movement can reduce accuracy. While the examination itself is not painful, some people may find it uncomfortable to lie in the same position for a period of time.
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