Assessment of intracranial collateral flow by using dynamic arterial spin labeling MRA and transcranial color-coded duplex ultrasound.
Stroke
; 39(6): 1894-7, 2008 Jun.
Article
em En
| MEDLINE
| ID: mdl-18403739
ABSTRACT
BACKGROUND AND PURPOSE:
To evaluate the potential of a new dynamic MRA sequence (DynAngio) based on arterial spin labeling for the assessment of intracranial collateral flow.METHODS:
Twelve patients with unilateral internal carotid artery obstruction were investigated. Different patterns of collateral flow were compared between DynAngio, transcranial color-coded duplex ultrasound, and time-of-flight MRA.RESULTS:
There was a good agreement between the methods, with sensitivities between 80% and 90%. Small collateral vessels were detected more frequently with DynAngio compared to time-of-flight MRA.CONCLUSIONS:
DynAngio provides anatomic and similar to transcranial color-coded duplex ultrasound functional information on collateral flow for the assessment of intracranial hemodynamics.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Artérias Cerebrais
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Estenose das Carótidas
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Ultrassonografia Doppler Transcraniana
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Angiografia por Ressonância Magnética
Tipo de estudo:
Evaluation_studies
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Observational_studies
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Risk_factors_studies
Limite:
Aged
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Aged80
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Ano de publicação:
2008
Tipo de documento:
Article