Partial ring artifact on CT

Case contributed by Dr Bruno Di Muzio
CT

CT Brain

CT scan images appear with a dark semicircular artifacts that repeats frequently in the same position. 

Case Discussion

Ring artefacts are a CT phenomenon that occur due to miscalibration or failure of one or more detector elements in a CT scanner. 

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Case information

rID: 31050
Published: 17th Sep 2014
Last edited: 14th Aug 2019
Inclusion in quiz mode: Included

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