1. Method for optimally visualizing a morphologic region of interest of a bone in an X-ray image of a patient, comprising: receiving a set of 3D medical images of the patient's hone, creating a 3D bone model of at least part of the bone comprising said region of interest from said set of 3D images, determining a criterion representative of a visualization of the extent of said morphologic region of interest, automatically determining from the 3D bone model optimal relative bone and X-ray orientation so as to optimize said criterion for said patient, and creating at least one virtual X-ray image of the bone from said set of 3D images according to said optimal relative bone and virtual X-ray orientation.