Procedural planning is a crucial step in medicine, regardless of the complexity or magnitude of the intervention. In cardiology, there are many tools in the heart team's arsenal, and it is therefore important to choose the right tools for the procedure. Complex procedures also demand planning for all those involved. 3D reconstructions as well as 3D printing have the potential to make a positive impact on procedural planning in cardiovascular interventions. New techniques and complex anatomical defects can be investigated and developed in silico and physical 3D models using standard medical imaging. In this paper, we present a case study of the endovascular repair of a sinus venosus atrial septal defect, aided by the 3D reconstruction and physical printing of the native heart anatomy.