Citation, DOI, disclosures and case data
Giyab O, Ring artifact. Case study, Radiopaedia.org (Accessed on 22 Mar 2023) https://doi.org/10.53347/rID-22694
At the time the case was submitted for publication Omar Giyab had no recorded disclosures.View Omar Giyab's current disclosures
16 Apr 2013
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From the case: Ring artifact
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Two images from a non-contrast CT of the abdomen demonstrate concentric rings centered on the caudate lobe of the liver. These do not conform to normal anatomy and represent ring artefact.
1 case question available
Ring artifact is usually obvious and rarely is mistaken for pathology, although it can obscure pathology in affected parts of the scan. It is most often due to a faulty x-ray detector.