SYSTEM AND METHOD FOR MOTION AND ANGULATION PROFILES IN TOMOSYNTHESIS

摘要

PPROBLEM TO BE SOLVED: To provide a system and method for adjusting an X-ray beam according to movement of the X-ray source, as regards tomosynthesis, generally, and more specifically, as regards angulation profiles and motion profiles in a tomosynthesis system. PSOLUTION: A method (500) for improved motion and angulation profiles in tomosynthesis includes designating a target (12) with a first (16) and second dimension. An x-ray beam (18) is projected onto at least a portion of the target (12). The x-ray beam (18) has an origin (80) with a position (58) along the first dimension (16). The x-ray beam (18) also has a beam axis (34), a projection area (28), and an angle (20, 40) representative of an angular distance between the beam axis (34) and the at least a portion of the target (12). The method (500) further includes a step of varying the angle (20, 40) based at least in part on the position (58) of the origin (80) along the first dimension (16). The angle (20, 40) is varied to substantially maintain the projection area (28). PCOPYRIGHT: (C)2007,JPO&INPIT