Weerakkody Y, Elfeky M, Gevorgyan E, et al. Hepatic attenuation on CT. Reference article, Radiopaedia.org (Accessed on 25 Apr 2024) https://doi.org/10.53347/rID-8020
Hepatic attenuation on CT, reflected by Hounsfield values, depends on a combination of factors including the presence or absence, as well as the phase, of IV contrast administration.
Allowing for all these factors, the mean unenhanced attenuation value is around 55 HU 4.
Pathology
Several intrinsic liver pathologies can cause a diffuse change in liver attenuation with increased hepatic fat being the most prevalent.
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