title: Unusual artifact with mammography film.
abstract: The authors identified the origin of a high-density artifact with mammography film. An acrylic ramp phantom (thickness, 0-7 cm) was used to create a continuously variable radiation exposure. A perturbation in the curve of optical density versus position along the ramp was observed. Development of the film with the emulsion side down eliminated this artifact.
authors.affiliation: Aultman Hospital, Northeastern Ohio Universities College of Medicine 44710-1799, USA.
authors.forename: W R
authors.initials: WR
authors.lastname: Hedrick
authors.forename: T B
authors.initials: TB
authors.lastname: Poulton
authors.forename: D E
authors.initials: DE
authors.lastname: Starchman
authors.forename: T E
authors.initials: TE
authors.lastname: Tobias
mesh_terms: D016477:Artifacts; D005260:Female; D006801:Humans; D008327:Mammography / Q000295:instrumentation; D019047:Phantoms, Imaging; D014962:X-Ray Film; D014963:X-Ray Intensifying Screens