Using Subdural Windows for Detecting Hemorrhage on Head CT When evaluating CT head for hemorrhage, widen the window. Note the difference in in appearance of the subdural hemorrhage between these two images. W: 80 to 150 W = Window Width • Narrow window is good for comparing tissues of differing attenuation (blood/lung vs soft tissue) • Wide window is good for comparing tissues of similar attenuation (similar soft tissues) L = Window Level (or Center) By Dr. Thomas Krewson @tomkrewson via Dr. Robert Jones @RJonesSonoEM #Subdural #Windows #Hemorrhage #HeadCT #Radiology #CTHead #diagnosis #comparison
