Ct image reconstruction

Artifact reduction in CT image method, inaccurate using reconstruction algorithms to reconstruct the first data image, first to provide at least a second image having a high damped separated from the low-damped segmenting the image data of the second re-projecting the second image to form a data set to reconstruct the third image from the second data set using inaccurate reconstruction algorithm, the subtracting the outer portion of the high damped out of at least a third image from the first image.