title: Grey-white matter interface (G-WMI) displacement: a new sign in the computed tomographic diagnosis of subtle subdural haematomas.
abstract: Subtle and isodense subdural haematomas present difficult problems on computed tomography (CT). The diagnosis is based predominantly on secondary signs of mass effect. A new sign is described, based on the detection of medial displacement of the grey-white matter interface (G-WMI). The presence and validity of this sign was evaluated in 66 cases with surgically proven subdural haematomas (SDH).
mesh_terms: D003287:Contrast Media; D006408:Hematoma, Subdural / Q000000981:diagnostic imaging*; D006801:Humans; D014057:Tomography, X-Ray Computed / Q000379:methods
chemical_list: D003287:Contrast Media