Improvement of the temporal resolution of cardiac CT reconstruction algorithms using an optimized filtering step

In this paper we study a property of the filtering step of multi-cycle reconstruction algorithms used in the field of cardiac CT. We show that the common filtering step procedure is not optimal in the case of divergent geometry and decrease slightly the temporal resolution. We propose to use the filtering procedure related to the work of Noo at al [7] and show that this alternative allows to reach the optimal temporal resolution with the same computational effort.