Author/Authors :
Bisogni، نويسنده , , M.G and Bottari، نويسنده , , S and Ciocci، نويسنده , , M.A and Fantacci، نويسنده , , M.E and Maestro، نويسنده , , P and Malakhov، نويسنده , , N and Marrocchesi، نويسنده , , P.S and Novelli، نويسنده , , M and Quattrocchi، نويسنده , , M and Pilo، نويسنده , , F and Rosso، نويسنده , , V and Turini، نويسنده , , N and Zucca، نويسنده , , S، نويسنده ,
Abstract :
A multiple-exposure technique in digital mammography has been developed to suppress the physical background in the image due to Compton scattering in the body. A pair of X-ray masks, shaped in a projective geometry and positioned upstream and downstream the patient, are coupled mechanically and moved in four steps along a square pattern in order to irradiate the full area in four consecutive short exposures. A proof-of-principle apparatus is under test with a breast phantom and a standard mammographic X-ray unit. Results are reported.
