Three-dimensional venography of the brain with a volumetric interpolated sequence.
Radiology
; 234(3): 901-8, 2005 Mar.
Article
em En
| MEDLINE
| ID: mdl-15734941
ABSTRACT
Informed consent was obtained from all patients before participation; study was approved by institutional review board. Three-dimensional (3D) gradient-echo magnetic resonance sequences can be optimized for rapid acquisition through asymmetric k-space sampling and interpolation of image data. A T1-weighted volumetric interpolated brain examination sequence (acquisition time, 1 minute 24 seconds) was prospectively compared qualitatively and quantitatively with magnetization-prepared rapid acquisition gradient-echo sequence (acquisition time, 6 minutes 6 seconds) for venography of cerebral venous structures in 21 female and seven male consecutive patients (mean age, 52.9 years; range, 16-81 years). Although signal- and contrast-to-noise ratios were substantially lower for volumetric interpolated sequence, difference in the subjective quality of visualization of cerebral venous structures was not significant (P >.05). Volumetric interpolated brain examination seems promising as a more time-efficient alternative for 3D imaging of cerebral venous structures.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Encefalopatias
/
Flebografia
/
Angiografia por Ressonância Magnética
Tipo de estudo:
Observational_studies
Limite:
Adolescent
/
Adult
/
Aged
/
Aged80
/
Female
/
Humans
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Male
/
Middle aged
Idioma:
En
Revista:
Radiology
Ano de publicação:
2005
Tipo de documento:
Article
País de afiliação:
Bélgica