Understanding your FibroScan result
A FibroScan — one brand of transient elastography — estimates how stiff your liver is by measuring how quickly a pulse travels through it. Scarring makes tissue stiffer, so the measurement acts as an indirect estimate of fibrosis without the need for a biopsy.
It is quick, painless, and done with a probe on the skin over your liver.
What the number means
The result is reported in kilopascals (kPa). Higher values suggest stiffer tissue, which generally suggests more fibrosis. Many machines also report a separate measure related to fat in the liver.
Two things are important, and they are the reason this article will not print a table of numbers:
- The cut-offs differ depending on the underlying liver condition. A value meaning one thing in hepatitis B may mean something different in another liver disease.
- The cut-offs differ between guidelines and machines. Comparing your number to one you found online, from a different context, can be actively misleading.
Your result is interpreted by your doctor alongside your blood tests, imaging, history and previous scans.
What can distort a reading
A FibroScan measures stiffness, and several things besides scarring make a liver temporarily stiffer:
- Eating shortly before the scan — which is why you are usually asked to fast beforehand. Follow the instructions you are given.
- Active inflammation. A flare with a high ALT can push the reading up without any change in underlying scarring, which is one reason results are read next to your liver enzymes.
- Congestion from heart problems, and some other medical conditions.
- Technical factors, including body habitus and probe placement. Reliability measures reported with the result tell your clinician how much confidence to place in it.
A single unexpectedly high reading is usually a reason to look more closely, not a conclusion in itself.
The trend is the useful part
As with blood tests, one scan is a snapshot. What tends to be informative is the direction over years — stable, improving, or worsening. Fibrosis can improve with sustained viral suppression, and seeing that on repeat scans is genuinely encouraging.
Keeping your own record of results and dates makes that trend visible, especially if you have been scanned at more than one clinic.
Questions worth asking
- How does this compare to my previous scans?
- Was this reading reliable, or should it be repeated?
- Does anything about my current results change how often you want to scan me?
Further reading
LVRHealth is a personal tracking and organization tool. It does not provide medical advice, diagnosis, or treatment, and never replaces your healthcare team. Always follow the guidance of your doctor or qualified healthcare provider.
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