The computer is a HP touchsmart tm2 that allows the use of a stylus to write or mark lines in the tactile screen. It has been provided with a software done by the group that manages a MRI 3D image in order to show each slice in all projections and allow a physician to outline a region that he/she wishes to segment (usually, an organ like the heart or the liver). The following slice inherits the former mark and can be easily edited with minimal effort. The purpose is to obtain a set of manually segmented cases that can serve as a golden pattern to test automatic segmentation algorithms.