Patent ID: 7813473

Claim:
A method for acquiring a projection data set, comprising: rotating a distributed X-ray source and a detector array about a volume containing a heart having a cardiac cycle, wherein a rotational period of the distributed X-ray source comprises a length of time required for image reconstruction and is approximately a multiple of the cardiac cycle, wherein the distributed X-ray source comprises a plurality of addressable X-ray focal spots; emitting X-rays from the distributed X-ray source; acquiring a projection data set comprising a plurality of projections generated from the emitted X-rays at each view location of a gantry; generating a set of interpolated projections by interpolating the projection data set using phase information from the projection data set or from a set of concurrently acquired phase data and apriori frequency content of the projection data set, wherein each interpolated projection characterizes the projection data at a particular view location of the gantry and at a particular time; and reconstructing the set of interpolated projections to generate one or more images.