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• W2119201710 endingPage "2031" @default.
• W2119201710 startingPage "2025" @default.
• W2119201710 abstract "Background and Purpose — Besides classic criteria, cerebral perfusion imaging could improve patient selection for thrombolytic therapy. The purpose of this study was to compare quantitative perfusion CT imaging and qualitative diffusion- and perfusion-weighted MRI (DWI and PWI) in acute stroke patients at the time of their emergency evaluation. Methods — Thirteen acute stroke patients underwent perfusion CT and DWI or PWI on admission. The size of infarct and ischemic lesion (infarct plus penumbra) on the admission perfusion CT was compared with that of the MR abnormalities as shown on the DWI trace and on the relative cerebral blood volume, cerebral blood flow, time to peak, and mean transit time maps calculated from PWI studies. Results — The most significant correlation was found between infarct size on the admission perfusion CT and abnormality size on the admission DWI map ( r =0.968, P <0.001). A significant correlation was also observed between the size of the ischemic lesion (infarct plus penumbra) on the admission perfusion CT and the abnormality size on the mean transit time map calculated from admission PWI ( r =0.946, P <0.001). Information about cerebral infarct and total ischemia (infarct plus penumbra) carried by both imaging techniques was similar, with slopes of 0.913 and 0.905, respectively. Conclusions — An imaging technique may be helpful in the identification of cerebral penumbra in acute stroke patients and thus in the selection of patients for thrombolytic therapy. Perfusion CT and DWI/PWI are equivalent in this task." @default.
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• W2119201710 date "2002-08-01" @default.
• W2119201710 modified "2023-10-16" @default.
• W2119201710 title "Comparison of Admission Perfusion Computed Tomography and Qualitative Diffusion- and Perfusion-Weighted Magnetic Resonance Imaging in Acute Stroke Patients" @default.
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• W2119201710 doi "https://doi.org/10.1161/01.str.0000023579.61630.ac" @default.
• W2119201710 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/12154257" @default.
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