The present invention relates to a computer-implemented medical data processes, it is used to determine the 2D views within the 3D- images-data set obtained of a patient, wherein method includes executing, on a computer a, processor of the following steps: a) identification and the expression at least one interested anatomical structure (2) of at least one anatomical structure (2) registration in 3D- images-data set B) spatial position of the spatial position of at least one anatomical structure (2) and a scheduled part of a Medical Instruments (1) is determined in the real space C) 2D views are determined within 3D- images-data set, wherein the view-plane of 2D view is defined based on the spatial position of Medical Instruments (1), wherein based on the relative tertiary location of a scheduled part of Medical Instruments (1) and at least one anatomical structure (2), view-center (B) of 2D view is defined D) view-center relative position about the restriction of a scheduled part of Medical Instruments (1) is maintained at 2D views. The invention further relates to a corresponding computer program, a corresponding program storage medium and a corresponding system, for executing such method.
