What is Scintigraphy?
Scintigraphy is a type of diagnostic test in nuclear medicine that uses small amounts of radioactive substances to create images of organs and tissues inside the body. It is also known as a radionuclide scan or nuclear scan. In
pediatrics, scintigraphy is commonly used to evaluate various conditions including infections, bone disorders, and organ function.
How Does Scintigraphy Work?
During a scintigraphy procedure, a
radioactive tracer is injected into the child's bloodstream. This tracer emits gamma rays which are captured by a gamma camera to create detailed images. The choice of tracer depends on the organ or condition being examined. For example, technetium-99m is a commonly used tracer in pediatric imaging.
Bone infections (osteomyelitis)
Fractures that are not visible on X-rays
Kidney function and scarring (DMSA scan)
Thyroid disorders
Heart abnormalities
Gastrointestinal bleeding
Is Scintigraphy Safe for Children?
Yes, scintigraphy is generally safe for children. The amount of radioactive material used is very small and is carefully calculated to minimize exposure. The
benefits of obtaining accurate diagnostic information usually outweigh the minimal risks associated with radiation exposure. However, it is important to follow the specific instructions given by healthcare providers to ensure safety.
The child will receive an injection of the radioactive tracer.
There may be a waiting period to allow the tracer to accumulate in the targeted area; this can range from a few minutes to a few hours.
The child will then lie still on a table while the gamma camera takes images. This part of the procedure is painless but may take some time.
Are There Any Side Effects?
Side effects from scintigraphy are rare in children. Some may experience slight discomfort or anxiety from the injection or the need to lie still during the imaging process. Allergic reactions to the tracer are extremely rare. If parents notice any unusual symptoms such as rash or difficulty breathing, they should contact a healthcare provider immediately.
Explain the procedure to the child in simple terms to reduce anxiety.
Follow any fasting or hydration instructions provided by the healthcare team.
Bring comfort items such as a favorite toy or blanket to help the child feel more at ease.
What Happens After the Procedure?
After the scintigraphy procedure, the child can usually resume normal activities. The radioactive tracer will lose its radioactivity over time and be eliminated from the body through urine or stool. It is important to ensure the child drinks plenty of fluids to help flush out the tracer. The healthcare provider will review the images and discuss the
results with the parents, including any next steps or additional tests if needed.
Conclusion
Scintigraphy is a valuable diagnostic tool in pediatric medicine that helps in the accurate diagnosis and management of various conditions. While the idea of using radioactive material may concern some parents, the procedure is safe and offers significant benefits in terms of detailed and precise imaging. Understanding the process and preparing adequately can help reduce anxiety and ensure a smooth experience for both the child and the parents.
