title: VQ scintigram in the CT pulmonary angiogram era.
authors.forename: James D
authors.initials: JD
authors.lastname: Birchall
mesh_terms: D000465:Algorithms; D006801:Humans; D011655:Pulmonary Embolism / Q000000981:diagnostic imaging*; D014055:Tomography, Emission-Computed; D036542:Tomography, Spiral Computed