| Power Doppler imaging and color Doppler flow imaging for the evaluation of normal and pathological vertebral arteries. | |
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MedLine Citation:
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PMID: 9557142 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Recently, an ultrasound method for vascular applications using the amplitude of the reflected echosignal for the generation of intravascular color signals has been introduced. We compared the utility of this power Doppler imaging (PDI) with conventional color Doppler flow imaging (CDFI) for examination of vertebral arteries (VA). Forty-nine patients with signs and symptoms suggesting ischemia within the posterior circulation were evaluated. Quality of blood flow visualization by PDI and CDFI at the different VA segments was classified according to a four point scale. Furthermore, combined sonographic findings were correlated with the results of digital substraction and/or magnetic resonance angiography (DSA, MRA). Power Doppler imaging provided a significantly superior visualization of the intertransversal VA, whereas display of the intracranial V4 segment was superior significantly on CDFI. Both methods were complementary for the evaluation of the VA at the origin. With respect to the angiographic findings, combined CDFI and PDI achieved a sensitivity of 90.63% and a specificity of 97.22% for the differentiation of healthy and pathologic VAs. Power Doppler imaging is complementary to CDFI for the sonographic assessment of VA disease. Combined use of PDI and CDFI achieves a high sensitivity and specificity, thus increasing diagnostic confidence. |
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Authors:
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S Ries; W Steinke; G Devuyst; N Artemis; A Valikovics; M Hennerici |
Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Journal of neuroimaging : official journal of the American Society of Neuroimaging Volume: 8 ISSN: 1051-2284 ISO Abbreviation: J Neuroimaging Publication Date: 1998 Apr |
Date Detail:
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Created Date: 1998-06-03 Completed Date: 1998-06-03 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 9102705 Medline TA: J Neuroimaging Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 71-4 Citation Subset: IM |
Affiliation:
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Department of Neurology, University of Heidelberg, Klinikum Mannheim, Germany. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Adult Aged Brain Ischemia / ultrasonography* Female Humans Ischemic Attack, Transient / ultrasonography Male Middle Aged Sensitivity and Specificity Ultrasonography, Doppler, Color / methods* Ultrasonography, Doppler, Transcranial / methods* Vertebral Artery / pathology, ultrasonography* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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