1. A medical imaging system for planning an implantation of a cardiac implant, comprising: an interface configured to receive a plurality of three-dimensional (3D) cardiac images showing different conditions of a heart during a cardiac cycle; a processor in communication with the interface, wherein the processor is programmed to: receive, via the interface, the plurality of 3D cardiac images; segment within the plurality of 3D cardiac images a target implant region and a locally adjacent region that could interfere with the cardiac implant, wherein the target implant region is a part of a left ventricular outflow tract and the locally adjacent region is a part of a mitral valve; simulate the implantation of the cardiac implant within the target implant region in at least two of the plurality of 3D cardiac images; evaluate an overlap of the simulated cardiac implant with the segmented locally adjacent region in at least two of the plurality of 3D cardiac images; determine in each of the plurality of 3D cardiac images the overlap at a plurality of different spatial locations along a longitudinal axis (z) along which the target implant region substantially extends as a function of a depth of the cardiac implant; and provide feedback information, via a feedback unit, to a user indicative of the overlap evaluated.