We are pleased to announce the release of version 3.1 of InVesalius software.

During the development period tools were inserted based on the need of the user community and several errors were corrected.

New features​

  • Support to open TIFF, BMP, JPEG and PNG files (micro-CT);
  • Support to open NiFTI 1 files;
  • Support to open PAR/REC files;
  • Region Growing based segmentation (Dynamic, Threshold and Confidence);
  • Selection of mask connected components;
  • Removal of mask connected components;
  • Tool to fill mask holes automatically;
  • Tool to fill mask holes interactively;
  • Tool to crop mask;
  • Support to move slice measure points;
  • Menu option to (de)activate the navigation mode;
  • Import surface files (STL, PLY, OBJ and VTP) into InVesalius project;
  • Surface area information;
  • Segmentation menu with the options: Threshold, Manual, Watershed and Region Growing;
  • Created a canvas class (CanvasRendererCTX) to draw 2D forms and text over the vtkRenderer;
  • Swap image axes;
  • Flip image;
  • English documentation.


  • Code restructured to follow Python pattern;
  • Code ported to wxPython3;
  • Code ported to VTK 6;
  • Context-Aware Smoothing ported to Cython;
  • Using CanvasRendererCTX to draw slice measures;
  • Using CanvasRendererCTX to draw the slice informations;
  • Brazilian Portuguese updated to 3.1.0 version.


  • Transparency widget from Surface properties respects the actual surface transparency;
  • Measures, Surfaces, Mask and other data are being removed from memory when closing a project;
  • Importation of Koning Breast CT DICOM images.

About InVesalius

InVesalius is an open source medical software for images reconstruction of CT or MRI. In addition to the medical field, the software is used in teaching, forensic analysis, veterinary, paleontology and in the industry for parts inspection. It can be used on Microsoft Windows, GNU / Linux and Apple Mac OS X platforms. InVesalius has been developed since 2001 by the Center for Information Technology Renato Archer (CTI) . At that time, there was no medical imaging software that would meet the needs of Brazilian hospitals and clinics. InVesalius then emerged as development proposal in the country with the following objectives:

- minimum cost or no acquisition cost;

- ability to run on low-cost personal computers;

- ability to run on different operating systems;

- acting as a platform to encourage the use and development of medical images in Brazil.

In addition to Brazil, 142 countries have a history of using InVesalius, including renowned universities, hospitals and large industries.

Download and informations: https://www.cti.gov.br/en/node/395/

Imagem do software InVesalius com cérebro selecionado.
InVesalius 3.1: Magnetic resonance imaging with selected brain by region growing tool.

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