"Air bubble artefact": A new type of artefact on CT head examination

S. McVey, A. K. Kanodia (Lead / Corresponding author), S. Dundas, G. Main, S. Pillai, G. Prasad, J. Flinn, I. Zealley, K. Brauer, N. Schembri, S. Docherty, A. Webster, M. Szewczyk-Bieda, T. Sudarshan

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• Air bubble artefact is a new type of CT artefact on CT heads.
It is produced by gas bubbles in the tube oil cooling system.
• It can cause inconsistent, illdefined areas of low attenuation mimicking pathologies.
• The usual physics checks and QC may be inadequate to confirm these.
• Equipment manufacturers may lack automatic alarms to detect these.
Original languageEnglish
Pages (from-to)1059-1065
Number of pages7
JournalClinical Radiology
Issue number10
Early online date19 Jul 2016
Publication statusPublished - Oct 2016

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