Documentation/4.4/Announcements

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




4.4


Summary What is 3D Slicer Slicer 4.4 Highlights Slicer Training Slicer Extensions Other Improvements, Additions & Documentation

Summary

The community of Slicer developers is proud to announce the release of Slicer 4.4.

  • Slicer 4.4 introduces
    • An improved App Store, known as the Extension Manager, for adding plug-ins to Slicer. More than 50 plug-ins and packages of plug-ins are currently available.
    • Close to 400 feature improvements and bug fixes have resulted in improved performance and stability.
    • Improvements to many modules.
  • Click here to download Slicer 4.4 for different platforms and find pointers to the source code, mailing lists and the 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 Slicer are not fully tested.
  • The Slicer Training page provides a series of tutorials and data sets for training in the use of Slicer.

slicer.org is the portal to the application, training materials, and the development community.

What is 3D Slicer

3D Slicer is:

  • A software platform for the analysis (including registration and interactive segmentation) and visualization (including volume rendering) of medical images and for research in image guided therapy.
  • A free, open source software available on multiple operating systems: Linux, MacOSX and Windows
  • Extensible, with powerful plug-in capabilities for adding algorithms and applications.

Features include:

  • Multi organ: from head to toe.
  • Support for multi-modality imaging including, MRI, CT, US, nuclear medicine, and microscopy.
  • Bidirectional interface for devices.

There is no restriction on use, but Slicer is not approved for clinical use and intended for research. Permissions and compliance with applicable rules are the responsibility of the user. For details on the license see here

Slicer 4.4 Highlights

  • New and Improved Modules
  • Improved Transforms module with support for non-linear transforms, visualization of transforms in 2D and 3D, detailed transform properties view - click here for demo video.
    • Improved integration of non rigid deformations, including grid (displacement field) and bspline transforms
    • Interactive application of non rigid deformations to volume slices, models, markups
    • Visualization of any transforms as glyphs, grid, or contours in 2D slice and 3D views
    • Computing and applying inverse transforms, compositing any number of transforms
    • Real-time update: if the transform (or any visualization parameter) is changed then the visualization is updated immediately (interactive visualization while editing the transform)
    • Detailed transform information display (type of transform, basic properties, displacement at current position)
    • Loading/saving of oriented bspline transforms with or without additive bulk component
    • Loading/saving of oriented grid transforms
    • Loading/saving of transforms in h5 file format
  • The user interface of the DICOM module has been improved for a better usability. A viewer for meta-data (header) has been added.
    • Added a way to change the table densities in three levels: compact, cozy and comfortable.
    • Re-arranged the patient, study and series search box so that the search box will be on the top of tables for both horizontal and vertical cases.
    • Resize tables based on contents.
    • Allow users to acknowledge all DICOM loading errors with a single click
    • Add DICOM meta-data (header) viewer
    • Auto-examine in dicom browser added by providing two modes: Advanced and Non-advanced mode.
    • Added repair tool for DICOM database
  • Compare Volumes provides the ability to create an overview of one or more volumes.
    • For one volume you can look at an array of equally spaced images (like LightBox mode, but wth an independent viewer per slice.
    • You can have a look at one viewer per loaded volume.
    • You can choose a common label or background volume for each per-volume viewer.
    • The RevealCursor allows you to look in detail at the fg/bg layers.
  • Improvements to the Interactive Editor
    • Added a Sphere option to the PaintEffect to make it quicker to segment large anatomical regions. Both the tumor and part of the superior saggital sinus were labeled using this effect.
    • Paint using pixel mode if brush size is too small
    • Button effect are checked/unchecked based on the 'effect' property stored in the parameter node

  • The LandmarkRegistration module was custom designed for interactive registration.

  • New annotations can be controlled in the DataProbe module. This new feature allows to display corner annotations (with information about the volumes available in the different layers of the Slice Viewer), a color scalar bar and an interactive scaling ruler.

  • The Scene Views module GUI updated with better layout.

  • The Subject hierarchy module allows to organize and manipulate data loaded in Slicer.

  • The DataStore module allows easy upload and download of MRB files from a Midas server.

  • The ExtensionsWizard replaces the ModuleWizard.
    • This new tool separates the concepts of extensions and modules, and allows creating an extension containing several modules, as well as adding modules to an existing extension.
    • It allows to publish the extension source code to github.
    • It provides an easy way to create a pull request on the extension index.
  • Improved ExtensionsManager:

  • All error and warning messages are saved to file. Logged messages for the current and recent sessions are available from the new error report box (menu: Help / Report a bug).

  • Improved Markups module user interface.
    • Added slice intersections toggle
    • Added right click option to copy markups list
    • Added coordinates to right click menu
  • Improved Colors module user interface.
    • Support for continuous color maps
    • Added an option to use color names as labels on the scalar bar

Slicer Training

The Slicer Training page provides a series of updated tutorials and data sets for training in the use of Slicer 4.4.


Slicer Extensions

  • New and Improved Extensions

  • Airway Segmentation to segment the airway from chest CT images.  UPDATED

  • CardiacAgastonMeasures to auto-segment the coronary calcium in Cardiac CT scans and then calculate the Agatston score and label statistics   NEW

  • Cardiac MRI Toolkit to analyze cardiac LGE-MRI images.   UPDATED

  • CarreraSliceInteractiveSegmenter to interactively segment in 3D   UPDATED

  • CBC 3D (CRTC's BCC & Compression) I2M (Image-To-Mesh) Conversion for Image Guided Therapy. The extension encapsulates two CLI modules: (1) Body Centric Cubic (BCC) Mesh Generation. (2) Mesh Compression (MC).   NEW

  • Change Tracker for quantification of the subtle changes in pathology.  UPDATED

  • CleaverExtension extension bundles the Cleaver meshing tool as a CLI module   NEW

  • Dice Computation to calculate the Dice Similarity Coefficient (DSC) between multiple label map images.  UPDATED

  • CMFreg is a set of tools package for cranio-maxillofacial registration   UPDATED

  • CornerAnnotation is a module to display annotations, time count, node elements on each panels on the Slicer user interface   UPDATED

  • CurveMaker is a module to generate a curve based on a list of fiducial points.   NEW

  • DTI Prep: The DWI/DTI Quality Control Processes from DICOM data to qualified DWI image.   UPDATED

  • DTI Process: DTI processing and analysis toolkit developed at UNC and University of Utah. Tools in this toolkit include (1) dtiestim, (2) dtiprocess, (3) dtiaverage, (4) fiberprocess and (5) fiberstats.   UPDATED

  • FastGrowCut is an editor effect providing a fast implementation of the GrowCut method that supports multi-label segmentations   UPDATED

  • FinslerTractography implements the Finsler tractography method with HARDI data as described by J. Melonakos et al., Finsler Active Contours, IEEE Trans PAMI, 30:412-423, 2008.   NEW

  • GelDosimetryAnalysis is a Slicelet covering the gel dosimetry analysis workflow used in commissioning new radiation techniques.   UPDATED

  • GyroGuide determines the trajectory angle and depth of puncture path, and transmits the calculated information to the probe for real time navigation.   NEW

  • IASEM to segmentation and process of IASEM Electron Microscopy images.  UPDATED

  • iGyne is an open source software for MR-Guided Interstitial Gynecologic Brachytherapy.   NEW

  • IntensitySegmenter is a simple tool that segments an image according to intensity value. It is mainly used to segment CT scans using the Hounsfield scale but the ranges of intensities and their corresponding labels can be specified in an input text file.   UPDATED

  • LightWeightRobotIGT to manage communication between 3D Slicer and LightWeight robot.   NEW

  • Longitudinal PET/CT to provide a user friendly Slicer interface for quantification of DICOM PET/CT image data.{{updated}

  • MABMIS: Multi-Atlas Based Group Segmentation   NEW

  • Matlab Bridge to allow running Matlab functions directly in 3D Slicer.  UPDATED

  • MultidimData: A set of modules for generic multidimensional data management in Slicer (0.2.1)   NEW

  • NeedleFinder: NeedleFinder: fast interactive needle detection. It provides interactive tools to segment needles in MR/CT images. It has been mostly tested on MRI from gynelogical brachytherapy cases.   NEW

  • PBNRR: This extension encapsulates a CLI module for the Physics-Based Non-Rigid Registration (PBNRR) method. The PBNRR compensates for the brain shift during the Image-Guided Neurosurgery (IGNS).   NEW

  • PercutaneousApproachAnalysis: The Percutaneous Approach Analysis is used to calculate and visualize the accessibility of liver tumor with a percutaneous approach.   NEW

  • PerkTutor for training in image-guided needle interventions.  UPDATED

  • PETDICOM: The PET DICOM Extension provides tools to import PET Standardized Uptake Value images from DICOM into Slicer.   NEW

  • Pk Modeling to calculate quantitative parameters from Dynamic Contrast Enhanced DCE-MRI images.  UPDATED

  • Port Placement to assists in the planning of surgical port placement in laparoscopic procedures.  UPDATED

  • PyDevRemoteDebug: This extension allows remote visual debugging of Python scripts using PyDev (http://pydev.org/)   NEW

  • Reporting to create image annotations/markup that are stored in a structured form.  UPDATED

  • ResectionPlanner: Modules for surgical resection planning.   NEW

  • Scoliosis: Extensions pertaining to scoliosis analysis   UPDATED

  • ShapePopulationViewer: Visualize and interact with multiple surfaces at the same time to easily compare them   UPDATED

  • http://slicer.vmtk.org/ SlicerExtension-VMTK]: The Vascular Modeling Toolkit as a 3D Slicer4 extension.   NEW

  • SlicerIGT to use all the advanced features of 3D Slicer for real-time navigation.  UPDATED

  • SlicerRT is a tool for powerful radiotherapy research.   UPDATED

  • TCIABrowser: A Module to connect to TCIA archive, browse the collections, patients and studies and download DICOM files to 3D Slicer.   NEW

  • Tracker Stabilizer to output a filtered transform node based on an tracker input (transform node).  UPDATED

  • UKF Tractography a framework which uses an unscented Kalman filter for performing tractography.  UPDATED

  • VolumeClip: Clip volumes with surface models and ROI boxes   NEW

  • Window/Level Effect to adjust window/level for volumes using mouse and/or region of interest.  UPDATED

  • XNAT Slicer Secure GUI-based IO with any XNAT server.  UPDATED

Extensions removed

  • DataStore: The module is now bundled in the regular Slicer distribution.
  • PathPlanner and VisualLine: Module PathXplorer available in SlicerIGT extension provides similar functionality.
  • PlusRemote: Moved PlusRemote module under SlicerIGT extension. Because PlusRemote depends on SlicerIGT, and is always used together with the other SlicerIGT modules.
  • TransformVisualizer: The feature has been moved to the Slicer core. See Transforms module.

Extensions renamed

Other Improvements, Additions & Documentation

Optimization

  • Improved performance of the rendering pipeline by optimizing observations management
  • Reduced the memory footprint by fixing memory leaks
  • Reduced the size of the installer
  • Faster loading of the image stack (png, jpg, bmp, tiff...)

Rendering / Visualization

  • Added Multi-sampling option

CLI / SlicerExecutionModel

  • Improved CLI AutoRun by ensuring that the slice view is not reset when inputs are updated.
  • CLI input and output files are not removed when in developer mode
  • Reduced the chance of crashes when CLI returns result images

Python scripting

  • Added support for real Qt resources in Python (see r23290 for details).
  • Improved VTK event support by adding a way to specify the CallData type (see here for details).
  • Bundled pydicom python module into the Slicer package
  • Added helper methods to ScriptedLoadableModuleLogic for managing parameter nodes
  • SelfTest: Added the clickAndDrag() method to the scripted module construct. It allows to send synthetic mouse events to the widget specified (qMRMLSliceWidget or qMRMLThreeDView)
  • Improvements to the slicer.util python module.
    • Added modulePath(moduleName) method
    • Added resetThreeDViews/resetSliceViews
    • Added VTKObservationMixin
    • Added getFirstNodeByClassAndName()
    • Added NodeModify context manager: It allows to easily disable modified event associated with a node, and automatically re-enable them and invoking them if it applies.

Other

  • Help / Report a bug: Application error/warning/debug log messages are now saved to file. Added option to copy/paste log file contents of recent Slicer sessions to bug reports.

For Developers

Under the hood

  • Added support for user-defined stereo-viewing options
  • Build-system
    • Improved support for Visual Studio 2013
    • Refactored management of external project launcher settings. See r23724
    • Added option Slicer_ITKV3_COMPATIBILITY. This option enabled by default will allow (if disabled) to build Slicer with ITKv3 compatibility later disabled and ITK_USE_64BITS_IDS enabled.


  • Improved Toolkits

  • Moved from CTK f64b68a to 1c97e54 (499 commits)

  • Moved from CTKAppLauncher v0.1.11 to v0.1.14 (43 commits)

  • Moved from ITK v4.4.1 to v4.6.0 (1089 commits)

  • Moved from OpenIGTLink 66e272d to 849b434 (53 commits)

  • Moved from Qt 4.7.4 to Qt 4.8.6

  • Moved from VTK v5.10.1 to VTK v6.2.0 (5490 commits)

Looking at the Code Changes

From a git checkout you can easily see the all the commits since the time of the 4.4.0 release: 

git log v4.3.0..HEAD

To see a summary of your own commits, you could use something like: 

git log v4.3.0..HEAD  --oneline --author=pieper

see the git log man page for more options.

Commit stats and full changelog

Related Projects

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