2. The system according to claim 1 , wherein the processing subsystem is configured for fusing the first fitted model and the second fitted model by, augmenting the first fitted model with a part of the second fitted model which is missing in the first fitted model; or adjusting or replacing a part of the first fitted model based on a corresponding part of the second fitted model having obtained a better fit; further comprising a visualization subsystem for visualizing the fused model.
8. The system according to claim 2 , wherein the first medical image is constituted by a time-series of images, wherein the first deformable model is arranged for modeling a change in the anatomical structure over the time-series of images, and wherein the visualization subsystem is configured for visually representing the change in the visualizing of the fused model.