3D Slicer’s Liver Segmentation: A Look at the New Features

March 28, 2024

3D Slicer, the open-source software platform for medical image informatics, image processing, and three-dimensional visualization, continues to evolve with the addition of new extensions that enhance its capabilities in liver anatomy segmentation. Building upon the foundation laid by the SlicerRVXLiverSegmentation extension, the recent updates have introduced significant improvements and new functionalities that promise to streamline the workflow for medical professionals and researchers.

SlicerRVXLiverSegmentation v1.1.0: What’s New?

The SlicerRVXLiverSegmentation extension, initially designed to facilitate the annotation of liver anatomy from DICOM data, has received a noteworthy update with its v1.1.0 release. This version introduces enhancements that further aid in the segmentation of liver, liver vessels, and liver tumors, making the process more efficient and user-friendly.

Aside from various fixes, the new version includes an updated Liver segmentation module which now handles injected T1 MRI images in addition to CT images. This is available in the segment editor options using the modality drop down menu.

Introducing SlicerRVXVesselnessFilters

In addition to the updates to the liver segmentation extension, the 3D Slicer community has welcomed the SlicerRVXVesselnessFilters extension. This new addition brings a suite of vesselness filters tested specifically for liver vessel segmentation, offering a range of options to suit different imaging scenarios and requirements.

Highlights of the Vesselness Filters:

  • Multiple Filter Options: Users can choose from several Hessian-based and morphological vesselness filters, each with its own strengths and applications.
  • Command Line Interface (CLI) Extensions: The filters are accessible via CLI, making them easy to integrate into automated workflows and batch processing.
  • Benchmarked Performance: The filters have undergone rigorous testing to ensure their effectiveness in various liver vessel segmentation tasks.


The continuous development of 3D Slicer’s extensions, such as SlicerRVXLiverSegmentation and SlicerRVXVesselnessFilters, demonstrates the commitment of the medical imaging community to improving the tools available for research and clinical practice. These updates not only enhance the functionality of 3D Slicer but also contribute to the advancement of medical research and patient care.

You can download those extesions from Slicer’s extension manager:

Reach us directly at kitware@kitware.fr if you need further information.


Kitware’s partners on this project are the LIRIS laboratoryPascal institutCReSTIC laboratory, and the CHU Clermont Ferrand.

This work was funded by the French Agence Nationale de la Recherche (grant ANR-18-CE45-0018, project R-Vessel-X, https://drv.uca.fr/ingenieriebr-de-projets/projets-finances/projets-termines/r-vessel-x). Antoine Vacavant is coordinator of the project (CHU Clermont Ferrand, Pascal institut).

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