title: Computed tomography and contrast enhancement.
mesh_terms: D000368:Aged; D001927:Brain Diseases / Q000000981:diagnostic imaging*; D001932:Brain Neoplasms / Q000000981:diagnostic imaging*; D003287:Contrast Media; D006801:Humans; D014057:Tomography, X-Ray Computed
chemical_list: D003287:Contrast Media