InVesalius

InVesalius transforms a series of 2‑D DICOM images from CT or MRI scanners into three‑dimensional reconstructions, enabling clinicians and researchers to visualise anatomical structures in volume. The software runs on Linux, Windows and macOS and supports a range of image formats including DICOM (ACR‑NEMA 1 and 2, version 3.0 with JPEG, RLE encodings), Analyze, BMP, PNG, JPEG and TIF. Users can manipulate slices with zoom, pan, rotation and brightness/contrast controls, and apply segmentation tools such as thresholding, watershed and 2‑D paint‑brush editing to isolate tissues of interest.

InVesalius provides measurement utilities for linear, angular and volume calculations, as well as tools for reorienting volumes and creating 3‑D surface models. Surface meshes can be exported in multiple formats (binary or ASCII STL, PLY, OBJ, VRML, Inventor) and volume renderings can be saved as BMP, TIFF, JPG, PostScript or POV‑Ray files. The application includes predefined rendering presets and crop‑plane functionality to aid detailed analysis.

The program is internationalized, offering interfaces in ten languages, and is positioned for stable, routine use in medical imaging workflows that require conversion of 2‑D slice data into manipulable 3‑D visualisations.