Invention Grant
US07706499B2 Acquisition and reconstruction of projection data using a stationary CT geometry 有权
使用固定CT几何获取和重建投影数据

Acquisition and reconstruction of projection data using a stationary CT geometry
Abstract:
Systems and methods are provided for acquiring and reconstructing projection data using a computed tomography (CT) system having stationary distributed X-ray sources and detector arrays. In one embodiment, a non-sequential activation of X-ray source locations on an annular source is employed to acquire projection data. In another embodiment, a distributed source is tilted relative to an axis of the scanner to acquire the projection data. In a further embodiment, a plurality of X-ray source locations on an annular source are activated such that the aggregated signals correspond to two or more sets of spatially interleaved helical scan data.
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