Abstract
To date, many algorithms have been investigated in order to obtain high quality images in CT. However, for their practical application to the CT system, it is necessary to solve many problems with the scanned data including patient motion, data truncation, photon noise and circuit noise. In this paper, we describe practical aspects focusing on the background of image reconstruction techniques generally used on the CT system, initiatives aimed at a practical use of iterative reconstruction, schemes for effective application, along with problems to be raised in applying the reconstruction on the CT system and its corrections.
