Abstract: An imaging system includes a portable litter including a structural housing and a digital detector positioned in the structural housing to detect X-ray signals corresponding to a region of interest to be imaged. The imaging system further includes at least one X-ray source for generating the X-ray signals, the at least one X-ray source positioned above the portable litter on an open gantry arrangement and configured to generate X-rays from different focal spot locations.

Abstract: A tomosynthesis system for forming a three dimensional image of an object is provided. The system includes an X-ray source adapted to irradiate the object with a beam of X-rays from a plurality of positions in a sector, an X-ray detector positioned relative to the X-ray source to detect X-rays transmitted through the object and a processor which is adapted to generate a three dimensional image of the object based on X-rays detected by the detector. The detector is adapted to move relative to the object and/or the X-ray source is adapted to irradiate the object with the beam of X-rays such that the beam of X-rays follows in a non arc shaped path and/or a center of the beam of X-rays impinges substantially on the same location on the detector from different X-ray source positions in the sector.