Refraction artifact
Last revised by Andrew Murphy on 2 Aug 2021
Citation, DOI, disclosures and article data
Citation:
O'Gorman P, Hacking C, Mayhew P, et al. Refraction artifact. Reference article, Radiopaedia.org (Accessed on 15 Oct 2024) https://doi.org/10.53347/rID-46914
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rID:
46914
Article created:
23 Jul 2016,
Patricia O'Gorman
Disclosures:
At the time the article was created Patricia O'Gorman had no recorded disclosures.
View Patricia O'Gorman's current disclosures
Last revised:
2 Aug 2021,
Andrew Murphy ◉
Disclosures:
At the time the article was last revised Andrew Murphy had no recorded disclosures.
View Andrew Murphy's current disclosures
Revisions:
4 times, by
4 contributors -
see full revision history and disclosures
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Synonyms:
- Refraction artifact in ultrasound
- Refraction artefact in ultrasound
- Refraction artefact
Refraction artifact can occur when a transmitted ultrasound pulse strikes an interface at a non-perpendicular angle. The difference in propagation speeds between the two tissues can cause refraction to occur. Should the refracted incident sound wave strike a reflector and cause an echo to return to the transducer, this may be displayed at an incorrect location as the transducer assumes all echoes have travelled along a direct path.
Refraction artifact should resolve if the transducer is moved such that the incident pulse is perpendicular to the interface.
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References
- 1. Feldman MK, Katyal S, Blackwood MS. US artifacts. Radiographics. 2009;29 (4): 1179-89. doi:10.1148/rg.294085199 - Pubmed citation
- 2. Wilson SR, Charboneau JW et-al. Diagnostic Ultrasound, 2-Volume Set, 4e (Rumack, Diagnostic Ultrasound, 2 Vol Set). Mosby. ISBN:0323053971. Read it at Google Books - Find it at Amazon
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