[Diffusion-Weighted Imaging infarct volume and neurologic outcomes after ischemic stroke]. / Volumétrie de l'ischémie cérébrale en IRM de diffusion et déficit fonctionnel secondaire après thrombolyse intraveineuse.
J Neuroradiol
; 39(2): 97-103, 2012 May.
Article
en Fr
| MEDLINE
| ID: mdl-22342940
ABSTRACT
BACKGROUND:
This study's purpose was to demonstrate a relationship between growth of stroke volume measured on Diffusion-Weighted MRI (DWI) at admission (baseline) and 24 hours later (follow-up) and functional outcome at 90 days evaluated by the modified Rankin Scale (mRS).METHODS:
DWI infarct volumes were calculated, using an Analyze Software. Clinical outcomes were assessed at 90 days by the mRS. Univariate regression analysis was performed to assess the relationship between changes in DWI lesion volume and mRS less or equal to 1.RESULTS:
Sixty-nine cases had serial DWI scans with a measurable lesion at baseline and follow-up. The median baseline National Institutes of Health Stroke Scale (NIHSS) was 10, 5 and 7 at 24 hours. At 90 days, the proportion of patients with Rankin less or equal to 1 was 51.7%. The average baseline volume was 19.7 cm(3) and average follow-up volume was 46.1 cm(3). For each 10 cm(3) of growth in DWI infarct volume, the odds ratio for a mRS less or equal to 1 was 10,1 (IC 95%, 3-33.9).CONCLUSION:
The results of this study provide evidence of a significant inverse relationship between infarct growth measured by DWI and good functional clinical outcome at 90 days.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Isquemia Encefálica
/
Accidente Cerebrovascular
/
Imagen de Difusión por Resonancia Magnética
Tipo de estudio:
Diagnostic_studies
/
Etiology_studies
/
Observational_studies
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Prognostic_studies
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Risk_factors_studies
Límite:
Adolescent
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Adult
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Aged
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Aged80
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Female
/
Humans
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Male
/
Middle aged
Idioma:
Fr
Revista:
J Neuroradiol
Año:
2012
Tipo del documento:
Article
País de afiliación:
Francia