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For the latest Slicer documentation, visit the read-the-docs.


Introduction Our Philosophy Slicer Highlights Slicer Extensions Other Improvements, Additions & Documentation


The community of Slicer developers is proud to announce the release of Slicer 4.2.

  • Slicer 4.2 introduces a new extensions framework, including a user friendly extension manager, and many tweaks and augmentations of the major changes introduced in Slicer 4.2.
  • Click here to download Slicer 4.2 for different platforms and find pointers to the source code, mailing lists and bug tracker.
  • Please note that Slicer continues to be a research package and is not intended for clinical use. Testing of functionality is an ongoing activity with high priority, however, some features of Slicer4 are not fully tested.
  • The Slicer Training page provides a series of courses for learning how to use Slicer4. The portfolio contains self-guided presentation and sample data sets.

The main pages provide a guided tour to the application, training materials, and the development community. New users should start there because we try to keep the pages organized and up to date.

Find out more about Slicer in the webinar held on Thursday, April 26, 2012 (describes the 4.1 release):


Our Philosophy

Slicer is a community platform created for the purpose of subject specific image analysis and visualization.

  • Multi-modality imaging including, MRI, CT, US, nuclear medicine, and microscopy
  • Multi organ from head to toe
  • Bidirectional interface for devices
  • Expandable and interfaced to multiple toolkits

There is no restriction on use, but permissions and compliance with rules are responsibility of users. For details on the license see here

Slicer 4.2 Highlights

Note that these are all based on the innovations introduced in 3D Slicer version 4.0.

Slicer Extensions

Extension for Slicer 4.2 are available as of April of 2012. A new extension manager gives access to the Slicer Extensions Catalog and makes it easy to install and uninstall extensions, as needed. The extension manager can be started from the View pull-down menu. See here for more information. The Slicer development community plans deliver domain-specific functionality and new modules as extensions.

Other Improvements, Additions & Documentation

Commit stats and full changelog

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