Fig. 6

The 3D model of each orbit (T1 and T2) were imported onto 3-matic Medical software. Construction of two cutting planes, one on the anterior surface of T1- orbit 3D model (a, b) and one on the posterior surface (c, d) (this planes replicated the planes cut of the segmentation masks); (e) surface-based registration between T1 and T2 3D models of orbital cavity, using T1 model as fixed entity; (f-h) the cut planes previously selected were used to cut the T2 orbit model