title: Scatter/primary ratios for x-ray spectra modified to enhance iodine contrast in screen-film mammography.
abstract: Contrast mammography to detect the uptake of iodine-containing contrast material may be enhanced by spectral modification of the x-ray beam. Luminance scatter-to-primary ratios were measured for three candidate x-ray tube anode/filter combinations (Mo/Mo, W/Ce, and Ce/Ce). Results show that scattered radiation is significant for all tubes, is lowest for the Mo/Mo system and is essentially the same for the tungsten and cerium anode systems.
mesh_terms: D002563:Cerium; D003287:Contrast Media; D006801:Humans; D007455:Iodine; D008327:Mammography / Q000379:methods*; D008961:Models, Structural; D011856:Radiographic Image Enhancement / Q000295:instrumentation; D012542:Scattering, Radiation; D014963:X-Ray Intensifying Screens
chemical_list: D003287:Contrast Media; D002563:Cerium; D007455:Iodine