SELF-CALIBRATED TOMOSYNTHETIC, RADIOGRAPHIC-IMAGING SYSTEM, METHOD, AND DEVICE

摘要

A self-calibrating tomosynthetic x-ray system is provided. A calibrated device for recording radiographic images of a selected object irradiated by a source of radiation includes a first radiolucent radiographic recording medium (40) in the form of a CCD device for recording a first projected radiographic image of the selected object. A second radiographic recording medium (42) in the form of a CCD device is supported in fixed generally parallel position relative to the first radiographic recording medium to permit radiation from the source to pass through the first radiographic recording medium and to impinge upon the second radiographic recording medium for recording a second projected radiographic image of the selected object. A radiopaque fiducial reference in the form of a grid (50) is supported in fixed position generally between the first and second radiographic recording mediums to permit a projected image of the radiopaque reference on the second radiographic recording medium.