Integrating XIP into a FOSS clinical workstation Final Presentation

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Integrating XIP into a FOSS clinical workstation
Final Presentation

• Max Meltser
• Advisors David Channin, Pat Mongkolwatt
• With much help from Vlad Kleper

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The Project

• Take two freely available, useful tools, and
  combine them
• XIP
• ClearCanvas Workstation
• Improve the ease of creating new filters, views,
  etc. and implementing them within a usable
  workstation
• Give radiologists more control over how images
  are viewed

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Review of XIP

• Currently being worked on in the Electronic
  Radiology Lab at Washington University in St.
  Louis
• Funded by the NCIs CaBIGTM program
• Based upon Siemens ivRad and RadBuilder
• Incorporates both ITK and VTK

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Advantages of XIP

• Easily modifiable Scene Graphs
• Simple, visual, flowchart design no coding
  necessary
• Scene graphs can be saved as a modifiable file
  that XIPBuilder will be able to read
• Scene graphs can also be compiled into a file
  that can be only be viewed
• Freely available

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Review of ClearCanvas Workstation

• Free, open source PACS workstation developed by
  ClearCanvas
• Developed for radiologists, clinicians, and also
  for researchers
• Easily Extensible through the creation of
  ClearCanvas specific plug-ins
• Written in C

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What are the goals?

• Integrate XIP into ClearCanvas Workstation
• Load dicom files in an XIP viewer within
  ClearCanvas
• Allow users to dynamically modify the scene graph
  within XIPBuilder and to see the changes within
  ClearCanvas

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The Goal
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So, How do we do this?

• Initially attempted using a Java DLL
• Didnt work
• Pat stayed in contact with Lawrence Tarbox of the
  XIP project
• Sent us a .Net sample XIP viewer
• Initially only showed a cone

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The Various Approaches
New XIP Libraries
C Application
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What Next?
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Putting Working XIP into ClearCanvas

• Created a new Desktop Workspace environment from
  ClearCanvas
• Gutted the XIP example
• Transplanted the guts into ClearCanvas
• Added controls

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Controlling XIP

• Limited API
• create()
• destroy()
• loadLibraries()
• loadGraph()
• set(String nodeProperty, String value)
• get(String nodeProperty)

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Controlling XIP
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Controlling XIP

• Parsing
• Fields are not uniform
• All options are not shown
• Input types are not shown
• Hardcoding
• Scene graphs must be created with proper labels

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Continued Adding Functionality

• 3D view would work sporadically
• Button on the toolbar
• Option in the context menu
• Automatically load data set from ImageViewer

• 3D panel worked consistently
• Hardcoding image files into the scene graph was
  at fault.

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Review of what works
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What Still Needs Doing

• BUGS
• XIP Fails to initialize
• Oblique causes an AccessExceptionViolation
• Cannot load a new scene graph
• Dataset loading limitations
• Things to do
• Better integrate controls into ClearCanvas
• Add XIP as a tile in the ImageViewer, not a tab
• Parser for .iv files?

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Any Questions?