title: Assessment of hyperacute stroke like symptoms by diffusion-weighted images.
abstract: We assessed the role of diffusion-weighted images in the evaluation of hyperacute stroke like symptoms in 18 patients. The volume of infarct measured by diffusion-weighted imaging (DWI) was correlated with the later computed tomography (CT) examinations. DWI had a sensitivity of 92%, specificity of 100%, positive predictive value of 100%, and negative predictive value of 86% in detection of acute hemorrhagic and ischemic stroke. There is a good correlation with the volume of infarct measured by DWI and follow-up CT with a P < .05.
authors.affiliation: Department of Diagnostic Radiology and Organ Imaging, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, New Territories, Hong Kong. wynnie@cuhk.edu.hk
authors.forename: Wynnie Wai Man
authors.initials: WW
authors.lastname: Lam
authors.forename: Ka Sing
authors.initials: KS
authors.lastname: Wong
authors.forename: Timothy Hudson
authors.initials: TH
authors.lastname: Rainer
authors.forename: Nina Man Ching
authors.initials: NM
authors.lastname: So
mesh_terms: D000208:Acute Disease; D000368:Aged; D002545:Brain Ischemia / Q000175:diagnosis; D038524:Diffusion Magnetic Resonance Imaging; D005260:Female; D006801:Humans; D008297:Male; D011237:Predictive Value of Tests; D012680:Sensitivity and Specificity; D020521:Stroke / Q000175:diagnosis*; D014057:Tomography, X-Ray Computed