METHODS AND APPARATUS UTILIZING GENERALIZED HELICAL INTERPOLATION ALGORITHM

摘要

Methods and Apparatus to reduce image artifacts when reconstructing an image with a multislice computed tomographic (CT) imaging scanner. An object is helically scanned to obtain a plurality of projection views of an object, a plane of reconstruction is defined, a conjugate sample line is defined that does not intersect the plane of reconstruction, a weighting function is applied to the conjugate samples to reduce image artifacts, and the image is reconstructed after the weighted data is filtered and backprojected. The method reduces potential image artifacts without requiring additional hardware be used or replaced.