Techniques and examples pertaining to registering a medical image of a patient with an anatomical model of the patient are described. A processor of an apparatus may calculate a mapping matrix between a real space and a virtual space using one or more mapping objects. The processor may receive data indicating a physical position of a probe relative to the patient. The processor may subsequently determine a virtual position of the probe in the virtual space based on the mapping matrix such that the virtual position as defined in the virtual space corresponds to the physical position in the real space. The processor may then determine a cut plane of the anatomical model, wherein the medical image may represent an anatomical cross-section of the patient at the cut plane.
