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Diffusion-weighted(DWI)and perfusion-weighted(PWI)MRI are powerful new techniques for the assessment of acute cerebral ischemia.However, quantitative data comparing the severity of clinical neurologic deficit with the results of DWI or PWI in the earliest phases of stroke are scarce.There was a high correlation between 24-hour NIHSS score and lesion volume as determined by PWI(r=0.96,p<0.001)or DWI(r=0.67,p=0.03).A similar high correlation was seen between T2W stroke size at 7 days and initial DWI and PWI lesion size(r=0.99,p<0.00001).Both DWI and PWI are highly correlated with severity of neurologic deficit by 24-hour NIHSS score. These findings may have substantial implications for the use of MRI scanning in the assessment and management of acute stroke patients. |
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cerebral infarction
cerebrovascular accident
cerebrovascular accident,acute management of
cerebrovascular accident,work up for
disability rating scale,neurological
disability,neurological
MRI
MRI,abnormal
MRI,cerebrovascular disease
MRI,diffusion weighted
MRI,early changes in CVA
MRI,false negative
MRI,perfusion
NIH stroke scale
stroke disability scale
treatment of neurologic disorder
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