title: Variability of ejection fraction results using commercial cardiac phantoms.
abstract: Variable ejection fraction results were obtained using two commercial phantoms with three different computer systems. The reasons for the results and their implications are discussed.
authors.affiliation: Department of Medical Physics, St Luke's Hospital, Guildford, Surrey, UK.
authors.forename: A P
authors.initials: AP
authors.lastname: French
authors.forename: C M
authors.initials: CM
authors.lastname: Tonge
authors.forename: J C
authors.initials: JC
authors.lastname: Peake
authors.forename: P W
authors.initials: PW
authors.lastname: Horton
mesh_terms: D006321:Heart / Q000000981:diagnostic imaging*; D006801:Humans; D008961:Models, Structural; D011875:Radionuclide Angiography; D013318:Stroke Volume