Liver scan
Technetium scan; Liver technetium sulfur colloid scan; Liver-spleen radionuclide scan; Nuclear scan - technetium; Nuclear scan - liver or spleenA liver scan uses a radioactive material to check how well the liver or spleen is working and to assess masses in the liver.
How the Test is Performed
The health care provider will inject a radioactive material called a radioisotope into one of your veins. After the liver has soaked up the material, you will be asked to lie on a table under the scanner.
The scanner can tell where the radioactive material has gathered in the body. Images are displayed on a computer. You may be asked to remain still, or to change positions during the scan.
How to Prepare for the Test
You will be asked to sign a consent form. You will be asked to remove jewelry, dentures, and other metals that can affect the scanner's functions.
You may need to wear a hospital gown.
How the Test will Feel
You will feel a sharp prick when the needle is inserted into your vein. You should not feel anything during the actual scan. If you have problems lying still or are very anxious, you may be given a mild medicine (sedative) to help you relax.
Why the Test is Performed
The test can provide information about liver and spleen function. It is also used to help confirm other test results.
The most common use for a liver scan is to diagnose a condition called benign focal nodular hyperplasia, or FNH, which causes a non-cancerous mass in the liver.
Normal Results
The liver and spleen should look normal in size, shape, and location. The radioisotope is absorbed evenly.
What Abnormal Results Mean
Abnormal results may indicate:
- Focal nodular hyperplasia or adenoma of the liver
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Abscess
Abscess
An abscess is a collection of pus in any part of the body. In most cases, the area around an abscess is swollen and inflamed.
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Budd-Chiari syndrome
Budd-Chiari syndrome
Hepatic vein obstruction is a blockage of the hepatic vein, which carries blood away from the liver.
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Liver disease (such as cirrhosis or hepatitis)
Liver disease
The term "liver disease" applies to many conditions that stop the liver from working or prevent it from functioning well. Abdominal pain or swelling...
ImageRead Article Now Book Mark ArticleCirrhosis
Cirrhosis is scarring of the liver and poor liver function. It is the last stage of chronic liver disease.
ImageRead Article Now Book Mark ArticleHepatitis
Hepatitis is swelling and inflammation of the liver.
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Superior vena cava obstruction
Superior vena cava obstruction
SVC obstruction is a narrowing or blockage of the superior vena cava (SVC), which is the second largest vein in the human body. The superior vena ca...
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Splenic infarction (tissue death)
Splenic infarction
Splenic infarction is the death of tissue (necrosis) in the spleen due to a blockage in blood flow.
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Risks
Radiation from any scan is always a slight concern. The level of radiation in this procedure is less than that of most x-rays. It is not considered to be enough to cause harm to the average person.
Pregnant or nursing women should consult their provider before any exposure to radiation.
Considerations
Other tests may be needed to confirm the findings of this test. These may include:
- Abdominal ultrasound
- Abdominal CT scan
- Abdominal MRI scan
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Liver biopsy
Liver biopsy
A liver biopsy is a test that takes a sample of tissue from the liver for examination.
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This test is used infrequently. Instead, MRI or CT scans are more often used to evaluate the liver and spleen.
References
Mettler FA, Guiberteau MJ. Gastrointestinal tract. In: Mettler FA, Guiberteau MJ, eds. Essentials of Nuclear Medicine and Molecular Imaging. 7th ed. Philadelphia, PA: Elsevier; 2019:chap 7.
Squires JH, Narayanan S, Tadros S. Fundamentals of pediatric radiology. In: Zitelli BJ, McIntire SC, Nowalk AJ, Garrison J, eds. Zitelli and Davis' Atlas of Pediatric Physical Diagnosis. 8th ed. Philadelphia, PA: Elsevier; 2023:chap 25.
Tirkes T, Sandrasegaran K. Investigative imaging of the liver. In: Saxena R, ed. Practical Hepatic Pathology: A Diagnostic Approach. 2nd ed. Philadelphia, PA: Elsevier; 2018:chap 4.
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Liver scan - illustration
After a radioisotope has been injected into a vein, a series of pictures are taken of the liver by a scanner. It is particularly valuable because it can provide information about liver function. It is also used to help confirm other test results.
Liver scan
illustration
Review Date: 1/7/2023
Reviewed By: Jason Levy, MD, FSIR, Northside Radiology Associates, Atlanta, GA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.
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