Sensitivity of Non-contrast Computed Tomography Net Water Uptake Versus FLAIR-MRI, with MR-DWI Reference Standard, for Early Detection and Physiological Characterization of Ischemic Edema in Hyperacute Stroke.
OBJECTIVE On non-contrast computed tomography (NCCT), progressive hypoattenuation can be quantified as percent net water uptake (%NWU), whereas relative fluid attenuated inversion recovery (rFLAIR)-magnetic resonance imaging hyperintensity marks later-stage vasogenic edema and blood-brain-barrier disruption. We compare...