Parathyroid Scan

Nuclear medicine

What is a Parathyroid Scan?

A nuclear medicine parathyroid MIBI scan is used to look at possible problems involving the parathyroid gland(s). The parathyroids are four small hormone glands lying close to or embedded in the back surface of the thyroid gland, in the front of the neck.

If you have an elevated blood calcium level and parathyroid hormone level, then finding the overactive parathyroid tissue will help the surgeon find the lesion (tumor or growth), making the surgery easier and shortening surgical time.

Preparing For Your Parathyroid Scan

  • You may wear your own clothing, such as jogging, leggings, or sweat pants, as long as there are no metal fasteners, zippers, buttons, etc. Hospital gowns are available.
  • Jewelry and other accessories should be left at home, if possible, or removed prior to the scan.

Walk-in Patients: Please be sure to bring the signed order from your physician requesting the examination and your insurance card.

What You Can Expect During Your Parathyroid Scan

The Nuclear Medicine equipment used for your scan is performed in an open environment which alleviates discomfort or claustrophobia concerns, as the patient is not fully enclosed.

A Parathyroid scan procedure includes both an injection and the actual scan. Your technician will inject a very safe radioactive material (tracer) into a vein in your arm.

A gamma camera will move around your head and chest area but will not touch it to take pictures of the tracer as it moves through your body. This process takes about 30 minutes, during which you will need to remain still.

Once the images are completed, you will be asked to return in 2–3 hours so that further images of your neck and chest area can be taken. No further injections are given for the second session. The camera will rotate over a 360-degree arc around you, producing a series of images that include three-dimensional SPECT (single photon emission computed tomography) images. This session will take about 45 minutes.

After Your Parathyroid Scan

In most cases, you can go about your day after your scan. The small amount of radioactive tracer will lose its reactivity or pass through your urine and stool over the next day or two. Drink plenty of water to help flush it out of your system.

How Soon Will Scan Results Be Available?

Your images are reviewed, and results interpreted by one of our qualified doctors who specializes in reading images (radiologist). The Radiologist will prepare a report, which is electronically sent to your doctor as soon as available, usually within 24-48 hours

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17490 Highway 3, Suite B400
Webster, TX 77598

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17490 Hwy 3, Suite B400
Webster, TX 77598


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