Diffusion Weighted Imaging Findings in the Acute Lateral Medullary Infarction
Journal of Clinical Neurology
; : 107-112, 2006.
Artigo
em Inglês
| WPRIM (Pacífico Ocidental)
| ID: wpr-52488
Biblioteca responsável:
WPRO
ABSTRACT
BACKGROUND AND PURPOSE:
Negative findings on diffusion-weighted imaging (DWI) does not exclude the possibility of brainstem infarction, particularly in the acute stage of medullary lesion. Our aim was to investigate the false-negative rate of DWI in patients with acute lateral medullary infarction.METHODS:
We applied DWI to 26 patients with a clinical diagnosis of lateral medullary infarction within 72 h of the onset. We assessed relationships between initial DWI findings and time-to-MRI (the time between onset of symptoms and initial DWI), number of clinical symptoms and signs, and final lesion volume.RESULTS:
There were 8 cases (31%) of false negatives in the initial DWI results. The occurrence of false-negative DWI findings decreased significantly as the time-to-MRI increased (P=0.014). However, the false-negative rate was not significantly correlated with the number of clinical symptoms and signs or the final lesion volume.CONCLUSIONS:
The diagnosis of lateral medullary infarction should not be ruled out on the basis of early negative DWI. To confirm the lesion, follow-up DWI or further MRI should be performed in cases with early negative DWIresults:
Texto completo:
Disponível
Base de dados:
WPRIM (Pacífico Ocidental)
Assunto principal:
Imageamento por Ressonância Magnética
/
Seguimentos
/
Infartos do Tronco Encefálico
/
Diagnóstico
/
Difusão
/
Infarto
Tipo de estudo:
Estudo diagnóstico
/
Estudo observacional
/
Estudo prognóstico
Limite:
Humanos
Idioma:
Inglês
Revista:
Journal of Clinical Neurology
Ano de publicação:
2006
Tipo de documento:
Artigo