| Carotid turbulent flow observed by convergent color Doppler flowmetry in silent cerebral infarction. | |
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MedLine Citation:
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PMID: 12108907 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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AIM: A newly developed convergent color Doppler (CCD) was used for evaluating the possible relationship of the flow dynamics of the internal carotid artery to silent cerebral infarction (SCI). METHODS: In 108 patients (65+/-8 years) with stroke risk factors, the CCD simultaneously images information, on both flow direction and Doppler signal energy. The relation between turbulent flow and the incidence of brain lesions of SCI as identified by magnetic resonance imaging was investigated in 212 vessels, excluding four occluded vessels. Percent area stenosis was measured as (vessel area - lumen area)/(vessel area) on cross-sectional echo image of stenotic site. RESULTS: Incidence of turbulent flow in SCI patients with 50-70% or 70-90% stenosis was higher (76.5 or 59.1%) than that in non-SCI patients (17.4 or 33.3%, both p < 0.0001). CONCLUSION: Non-invasive assessment of flow dynamics by CCD imaging can be useful for proposing the early stages of brain damage even in patients free from neurological deficits. |
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Authors:
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Mie Ohyama; Katsufumi Mizushige; Hideo Ohyama; Tsutomu Takahashi; Naohisa Hosomi; Shin-Ichiro Ichihara; Masakazu Kohno |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: The international journal of cardiovascular imaging Volume: 18 ISSN: 1569-5794 ISO Abbreviation: Int J Cardiovasc Imaging Publication Date: 2002 Apr |
Date Detail:
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Created Date: 2002-07-10 Completed Date: 2002-12-19 Revised Date: 2004-11-17 |
Medline Journal Info:
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Nlm Unique ID: 100969716 Medline TA: Int J Cardiovasc Imaging Country: United States |
Other Details:
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Languages: eng Pagination: 119-24 Citation Subset: IM |
Affiliation:
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Second Department of Internal Medicine, Kagawa Medical University, Kita, Japan. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Aged Blood Flow Velocity Carotid Artery Diseases / ultrasonography* Carotid Artery, Internal / ultrasonography* Cerebral Infarction / ultrasonography* Cerebrovascular Circulation* Echocardiography, Doppler, Color* Female Humans Magnetic Resonance Imaging Male |
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