InVesalius generates 3D anatomical models based on a sequence of 2D DICOM files acquired using CT or MRI equipments. InVesalius is internationalized (currently available in Chinese, English, French, German, Greek, Portuguese, Spanish) and provides several tools: * DICOM-support including: (a) ACR-NEMA version 1 and 2; (b) DICOM version 3.0 (including various encodings of JPEG -lossless and lossy-, RLE) * Image manipulation facilities (zoom, pan, rotation, brightness/contrast, etc) * Segmentation based on 2D slices * Pre-defined threshold ranges according to tissue of interest * Edition tools (similar to Paint Brush) based on 2D slices * 2D and 3D measurements (distance and angle) * 3D surface creation * 3D surface connectivity tools * 3D surface exportation (including: binary STL, OBJ, VRML, Inventor) * High-quality volume rendering * Pre-defined volume rendering presets * Volume rendering crop plane * Picture exportation (including: BMP, TIFF, JPG, PostScript, POV-Ray)