title: Five modes of subtraction using artificial slow flow carotid angiography.
mesh_terms: D002339:Carotid Arteries / Q000000981:diagnostic imaging*; D002533:Cerebral Angiography; D006801:Humans; D010781:Photography; D012887:Skull Fractures / Q000000981:diagnostic imaging; D013382:Subtraction Technique; D013679:Technology, Radiologic