Hi @goldmond,
I would have thought ultrasound and MRI should be sensitive enough to pick up F3 fibrosis. Have you had the US and MRI recently before the fibroscan? It might be worth repeating the fibroscan or have another ultrasound done just in case it might be a false reading. I’m not sure, but worth talking to your doctor about next time you see them.
In the meantime, taking TAF as your doctor has recommended is likely to stop or reverse the fibrosis - Viral Load & Cirrhosis - #16 by ThomasTu.