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2. How it Works

A member of a health care team will inject a radioactive tracer into an arm vein. A technician then positions a gamma camera over the abdomen to take photos of the tracer as it travels through the body. Radiologists observe the entire process on a nearby computer. The test takes around an hour, though additional imaging may be necessary in some cases.

woman patient scan preparation xavierarnau / Getty Images

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Disclaimer

This site offers information designed for educational purposes only. You should not rely on any information on this site as a substitute for professional medical advice, diagnosis, treatment, or as a substitute for, professional counseling care, advice, diagnosis, or treatment. If you have any concerns or questions about your health, you should always consult with a physician or other healthcare professional.