| Use of intravenous contrast material in transcranial sonography. | |
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MedLine Citation:
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PMID: 9261457 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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RATIONALE AND OBJECTIVES: The appearance of the intracranial vasculature was compared on power and color Doppler ultrasound (US) scans obtained with and without a microbubble contrast agent. MATERIALS AND METHODS: Nine patients (three men, six women) aged 42-70 years (mean age, 53 years) participated in the study. Seven patients underwent both color Doppler US and power Doppler US before and after intravenous administration of contrast agent, and two underwent only color Doppler US. All patients had previously undergone cerebral angiography. RESULTS: Before contrast material was administered, power Doppler US was more sensitive than color Doppler US in the detection of intracranial vessels (P < .05); neither technique depicted the entire circle of Willis in eight of nine patients. Postcontrast power Doppler US depicted more vascular segments than postcontrast color Doppler US (P < .01) or precontrast power Doppler US (P < .01). Use of intravenous contrast material enabled the entire circle of Willis to be evaluated from a single temporal bone acoustic window with both power Doppler US and color Doppler US in all patients. Contrast-enhanced power Doppler US depicted vessels not shown by enhanced color Doppler US. CONCLUSION: Contrast-enhanced power Doppler US depicted more vessels, better demonstrated specific vascular segments, and provided better vascular definition of the intracranial vasculature than contrast-enhanced color Doppler US or unenhanced power Doppler US. |
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Authors:
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K J Murphy; R O Bude; L D Dickinson; J M Rubin |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Academic radiology Volume: 4 ISSN: 1076-6332 ISO Abbreviation: Acad Radiol Publication Date: 1997 Aug |
Date Detail:
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Created Date: 1997-09-24 Completed Date: 1997-09-24 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 9440159 Medline TA: Acad Radiol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 577-82 Citation Subset: IM |
Affiliation:
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Department of Radiology, Albany Medical College, NY, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Cerebral Angiography Cerebral Arteries / ultrasonography* Circle of Willis / ultrasonography Contrast Media / administration & dosage* Female Humans Injections, Intravenous Male Middle Aged Polysaccharides / administration & dosage, diagnostic use* Ultrasonography, Doppler, Transcranial* |
| Chemical | |
Reg. No./Substance:
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0/Contrast Media; 0/Polysaccharides; 127279-08-7/SHU 508 |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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