| Twinkling artifact in color Doppler imaging of the orbit. | |
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MedLine Citation:
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PMID: 12008819 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: To show an artifact related to color Doppler flow imaging of the orbit. METHODS: Three patients with strongly reflective structures in the orbit were selected from those routinely referred by clinicians for color Doppler ultrasonography of the orbit. Gray scale and color flow images were obtained with a 7.5-MHz linear array probe for a region with strongly reflective structures. A spectral display was acquired to confirm the presence of blood flow. RESULTS: One patient had a metallic foreign body just behind the bulb; another had calcification within the irregular mass of phthisis bulbi; and the third had hyperechoic drusen in the periphery of the intraocular melanoma. The color mosaic, suggesting the presence of blood flow, was detected beyond all hyperechoic structures. Close vertical bands with no outer wrapping were detected in the spectrum display, obtained by placing the sample volume on the region of color flow. The artificial color flow was recognized as a color Doppler twinkling artifact. CONCLUSIONS: The color flow beyond the strongly reflecting structures in the orbit might be mistakenly interpreted as real blood flow if an examiner is not familiar with the artifact. It should prompt further imaging with spectral Doppler ultrasonography. |
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Authors:
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Andrze Ustymowicz; Jaroslaw Krejza; Zofia Mariak |
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Publication Detail:
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Type: Case Reports; Journal Article |
Journal Detail:
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Title: Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine Volume: 21 ISSN: 0278-4297 ISO Abbreviation: J Ultrasound Med Publication Date: 2002 May |
Date Detail:
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Created Date: 2002-05-14 Completed Date: 2002-11-04 Revised Date: 2004-11-17 |
Medline Journal Info:
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Nlm Unique ID: 8211547 Medline TA: J Ultrasound Med Country: United States |
Other Details:
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Languages: eng Pagination: 559-63 Citation Subset: IM |
Affiliation:
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Department of Radiology, Bialystok Medical Academy, Poland. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Artifacts* Calcinosis / ultrasonography Eye Foreign Bodies / ultrasonography Eye Neoplasms / ultrasonography Female Humans Male Melanoma / ultrasonography Metals Optic Disk Drusen / ultrasonography Orbit / blood supply, ultrasonography* Orbital Diseases / ultrasonography Ultrasonography, Doppler, Color* |
| Chemical | |
Reg. No./Substance:
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0/Metals |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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