[Image quality in film and xero-mammography. I. Rendering of low contrast values (author's transl)].
The rendering of low contrast values by various mammographic imaging systems was investigated by a semi-objective procedure. Test exposures of a line raster with variable line widths were evaluated visually. Significantly better results were achieved by a xero-radiographic method. This was better than non-screen mammographic film in terms of object size, lower sensitivity to scatter and better resolution. The use of a tungsten rotating anode, with about 0.5 mm. Al filter, in xeromammography provided a satisfactory compromise between image quality and radiation dose in the rendering of low contrast studies.
D006801:Humans; D008327:Mammography; D008953:Models, Anatomic; D008982:Molybdenum; D011786:Quality Control; D011829:Radiation Dosage; D014414:Tungsten; D014984:Xeromammography
D008982:Molybdenum; D014414:Tungsten
Untersuchungen zur Bildgüte bei der Film- und Xero-Mammographie. 1. Mitteilung: Wiedergabe kleiner Strahlenkontraste.