Imaging
FibroScan
A FibroScan is a quick, painless ultrasound-based test that measures the stiffness of your liver to assess for scarring (fibrosis) or fatty change.
Quick answer
FibroScan: what it is and what the results mean
A FibroScan (transient elastography) uses a probe placed on the skin over the liver to send a painless pulse and measure how fast it travels through the liver. Stiffer (more scarred) liver tissue conducts the pulse faster.
- Why it is done: It is used to assess and monitor liver scarring in conditions such as fatty liver disease, hepatitis B and C, and alcohol-related liver disease, often avoiding the need for a liver biopsy.
- Understanding results: The result is a liver stiffness measurement (in kilopascals).
What it is
A FibroScan (transient elastography) uses a probe placed on the skin over the liver to send a painless pulse and measure how fast it travels through the liver. Stiffer (more scarred) liver tissue conducts the pulse faster.
Why it is done
It is used to assess and monitor liver scarring in conditions such as fatty liver disease, hepatitis B and C, and alcohol-related liver disease, often avoiding the need for a liver biopsy.
What to expect
You usually avoid eating for a few hours beforehand. You lie on your back with your right arm raised, and the operator places the probe between your ribs and takes several readings. It is painless and takes about 10–15 minutes.
Understanding the results
The result is a liver stiffness measurement (in kilopascals). Higher values suggest more fibrosis; the scan often also estimates the amount of fat in the liver. Results are interpreted alongside blood tests and your overall picture.
Good to know
Risks and limitations
FibroScan is safe, non-invasive and uses no radiation. Readings can be less reliable with obesity, fluid in the abdomen or recent eating, and it estimates fibrosis rather than replacing a biopsy in every case.
Education and reference only. This explains the test in general terms and is not medical advice. Always follow the specific instructions from the team arranging your test, and discuss your results with your clinician.
Answers
FibroScan: frequently asked questions
Is a FibroScan the same as a liver biopsy?
No. It is a painless scan that estimates liver stiffness, whereas a biopsy takes a tissue sample. FibroScan can often reduce the need for biopsy but does not fully replace it in all situations.
Why must I fast before a FibroScan?
Eating temporarily increases blood flow to the liver and can raise the stiffness reading, so avoiding food for a few hours beforehand gives a more accurate result.
Related tests
Other imaging investigations
Sources
Where this is drawn from
- NHS — Tests and treatments
- NICE — diagnostic guidance
- Royal College of Radiologists / relevant professional body
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