title: Spiral CT scans reduce cost.
mesh_terms: D001018:Aortic Diseases / Q000000981:diagnostic imaging; D001900:Boston; D003287:Contrast Media / Q000008:administration & dosage / Q000191:economics; D003363:Cost Control; D006801:Humans; D014057:Tomography, X-Ray Computed / Q000191:economics* / Q000379:methods*
chemical_list: D003287:Contrast Media