In at least one embodiment of the invention, a method of rib labeling for 2D images is disclosed. In at least one embodiment a corresponding computation unit, a system including a computation unit and a displaying unit, a medical imaging device, and a computer program are also disclosed. According to a first embodiment of the invention, the method of rib labeling includes receiving a plurality of 2D images representing cross sections of a rib cage, each 2D image comprising cross sections of a plurality of ribs; and generating an anatomical label for each of the ribs in each of the 2D images, each anatomical label being placed radially outside the rib cage. Each anatomical label is placed in the vicinity of the cross section of the respective rib to provide a simple identification of the respective rib.