| US artifacts. | |
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MedLine Citation:
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PMID: 19605664 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Image artifacts are commonly encountered in clinical ultrasonography (US) and may be a source of confusion for the interpreting physician. Some artifacts may be avoidable and arise secondary to improper scanning technique. Other artifacts are generated by the physical limitations of the modality. US artifacts can be understood with a basic appreciation of the physical properties of the ultrasound beam, the propagation of sound in matter, and the assumptions of image processing. US artifacts arise secondary to errors inherent to the ultrasound beam characteristics, the presence of multiple echo paths, velocity errors, and attenuation errors. The beam width, side lobe, reverberation, comet tail, ring-down, mirror image, speed displacement, refraction, attenuation, shadowing, and increased through-transmission artifacts are encountered routinely in clinical practice. Recognition of these artifacts is important because they may be clues to tissue composition and aid in diagnosis. The ability to recognize and remedy potentially correctable US artifacts is important for image quality improvement and optimal patient care. |
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Authors:
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Myra K Feldman; Sanjeev Katyal; Margaret S Blackwood |
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Publication Detail:
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Type: Journal Article; Review |
Journal Detail:
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Title: Radiographics : a review publication of the Radiological Society of North America, Inc Volume: 29 ISSN: 1527-1323 ISO Abbreviation: Radiographics Publication Date: 2009 Jul-Aug |
Date Detail:
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Created Date: 2009-07-16 Completed Date: 2009-09-30 Revised Date: 2010-11-22 |
Medline Journal Info:
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Nlm Unique ID: 8302501 Medline TA: Radiographics Country: United States |
Other Details:
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Languages: eng Pagination: 1179-89 Citation Subset: IM |
Copyright Information:
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Copyright RSNA, 2009 |
Affiliation:
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Department of Radiology, Western Pennsylvania Hospital, 4800 Friendship Ave, Pittsburgh, PA 15224, USA. myra.feldman@gmail.com |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Artifacts* Image Enhancement / methods* Ultrasonography / methods* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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