Method for reconstructing tomograms from detector measured data of a tomography unit

摘要

A reconstruction method is used in computed tomography, wherein an examination object is scanned with a beam that rotates during scanning about a system axis. In the method, firstly the absorption coefficients of subvolumes relatively remote from the system axis are determined. Subsequently the absorption coefficients of the subvolumes situated relatively nearer to the system axis are determined iteratively, taking account of the absorption coefficients already calculated.