Segment
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About Segment
Who uses Segment
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Referencing the software
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Acknowledgements
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Features
Automated LV analysis
Global / Regional LV analysis
CE-MRI viability analysis
Flow analysis
ROI analysis
Stress analysis
General 3D/4D Segmentation
Visualization
Feature requests
...
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Main Features


Why use segment instead of other available software?

  • Very fast and reliable automatic segmentation.
  • Ease of manual interaction.
  • Functionality for all parts of cardiac image analysis.
  • There are no company secrets! I will always tell you exactly how things are implemented. This is crucial for doing good research.
  • Inexpensive. Do not vaste resources on using a computer for only one software.
  • Facilitate multi-center studies by using the same software.
  • Vendor independent.
  • Customizable when using source code version.

 

File loader




  • Full support for DICOM files.
  • Can work as a DICOM viewer.
  • Connects to all DICOM compliant PACS servers.
  • Show thumbnails of folders to easily find images.
  • Tested on Siemens, Philips, GE, and Bruker.
  • Internal file format that can keep multiple image stacks and all segmentation and measurements.

Automated LV segmentation

 

  • Truly 3D+T segmentation.
  • Very fast (takes less than 20s for 12 slice and 30 time frames on a fast PC).
  • Ease of manual interaction.
  • Robust and accurate results.

Manual delineation of the RV

  • Ease of manual interaction.
  • End diastolic/systolic volume
  • Stroke volume
  • Ejection fraction

General object segmentation



  • Ultrafast levelset algorithm.
  • Easy manual interaction.
  • Logical manipulation of sub-objects (and, or, xor, not, etc).
  • Smooth of contours.
  • Export to STL files (accepted by rapid prototyping devices or meshing software).
Global LV function



  • Myocardial mass.
  • Endsystolic volume.
  • Enddiastolic volume.
  • Stroke volume.
  • Cardiac output.
  • Ejection fraction.
  • Peak ejection rate.
  • Peak filling rate.
  • Volume curve.
  • Volume loop.
Regional LV function




  • Radial contraction/expansion velocity.
  • Regional wall thickness.
  • Regional wall thickening.
  • Regional fractional thickening.
  • Possibility to export regional function to Clipboard/Excel.
Measurements



  • Place and annotate measurements.
  • Export coordinates and measurements to Clipboard/Excel.

Viability



  • Functionality to automatically delineate infarcted regions.
  • Tools for manual delineation or edit automatic delineation.
  • Automated calculation of scar percentage, and transmurality.
  • Possibility to export results to Excel.
Flow

  • Possibility to have fixed size ROI's.
  • Flow curves.
  • Velocity curves.
  • Area curves.
  • Forward/backward volume analysis.
  • Possibility to export curves to Excel.
  • 3D visualization of flow profiles.
  • Automatic eddy current compensation.
  • Automatic and manual phase unwrapping.
ROI analysis




  • Unlimited number of ROI's.
  • ROI's can be freely colored, and labelled.
  • Analysis of signal intensity, standard deviation and size over time.
  • Automatic placement of ROI's inside the myocardium.
Stress



  • Possibility to have two, four or more image stacks playing with exactly the same speed (even if there are different number of frames).
  • Simultaneous quantitative regional function analysis of several image stacks.
Patient report generator
  • Feature to automatically compile all measurements for one patient into a user friendly printable patient report sheet.
  • Anatomical images.
  • Viability information.
  • Patient details.
  • Global LV parameters.
  • Regional LV parameters.
Exporting capabilities
  • Export images as .jpg, .bmp, .png format..
  • Export movies as .avi or a sequence of .png files useful for Microsoft Power-Point presentations.
  • Save image stacks and results to a single file format.
  • Save/export segmentation.
  • Direct exporting possibilities for all results directly to Microsoft Excel.

Interfacing capabilities
  • Possible to write own plug-ins in Matlab (requires Premium Research Site License, or Commercial license).

 

Visualization





  • View multiple image stacks at the same time.
  • View intersections of image planes.
  • Possible to adjust brightness and contrast of each image stack.
  • 14 bit depth colormap.
  • 3D visualization of left ventricle with shortaxis and long axis slices.
  • Bulls eye plots of most parameters.
  • M-mode and montage views of image stacks.
  • View mode for flow analysis with magnitude image and phase image.
  • Surface rendering.
  • Soon a volume render module will be released.
Other functionality
  • Time resolved MPR (Multiple planar reconstruction) functionality.
  • Utilities to sort, and anonymize DICOM-files.

 

 


Segment homepage, last modified 2010-08-09.