Liver scan

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Liver scan

Overview

Risks

Results

Liver scan

Definition:

A liver scan uses a radioactive isotope to help determine how well the liver and/or spleen is functioning.

Alternative Names:
Technetium scan; Liver technetium sulfur colloid scan; Liver-spleen radionuclide scan; Nuclear scan - technetium; Nuclear scan - liver or spleen
How the test is performed:

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A radioisotope is injected into a vein. After the liver has had sufficient time to absorb the radioisotope, you will be asked to lie on a table where you will be positioned under the scanner.

The scanner is able to detect where the radioisotope material is located, and images are displayed on a computer. The technician operating the camera and computer can manipulate the equipment to get a clearer picture. You may be asked to remain still, hold your breath for short periods, or to change positions during the scan.

How to prepare for the test:

You must sign an informed consent form.
Remove jewelry, dentures, and other metals because they can interfere with the scanner's functions.
You may need to wear a hospital gown.

For infants and children:

The preparation you can provide for this test depends on your child's age and experience. For specific information regarding how you can prepare your child, see the following:

infant test or procedure preparation (birth to 1 year)
toddler test or procedure preparation (1 to 3 years)
preschooler test or procedure preparation (3 to 6 years)
schoolage test or procedure preparation (6 to 12 years)
adolescent test or procedure preparation (12 to 18 years)

How the test will feel:

When the radioisotope is injected, there will be a sharp prick or stinging from the needle. After the injection, there is no pain. The major discomfort is from the need to lie still during the scan; but if you are very tense, you may be given a mild sedative.

Why the test is performed:

The test is particularly valuable because it can provide information about liver function. It is also used to help confirm other test results.