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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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