title: What is the optimal pitch on helical CT for evaluation of aortic or pulmonary embolic disease?
authors.affiliation: Deaconess Hospital, Boston, MA, USA.
authors.forename: P
authors.initials: P
authors.lastname: Costella
mesh_terms: D000784:Aortic Dissection / Q000000981:diagnostic imaging; D017545:Aortic Aneurysm, Thoracic / Q000000981:diagnostic imaging*; D006801:Humans; D011655:Pulmonary Embolism / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed / Q000379:methods*