2014 Project Week:MultidimensionalDataSupport

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  Projects List

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  Multidimensional data editor

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  Multidimensional data browser

Key Investigators

• Queen's: Andras Lasso
• BWH: Andriy Fedorov
• Isomics: Steve Pieper
• Kitware Jean-Christophe Fillion-Robin
• UHN: Kevin Wang

Project Description

Objective

• Add support for node bundle sequences (e.g., time sequence, multi-parametric images, etc.)
  • All node types: not just volumes but also transforms, models, markups, and any custom nodes
  • Large data sets: up to 5000 bundles, with any number of nodes in each bundle, any size of nodes
• Operations:
  • Import from sequence metafile (time sequence of a 2D image and multiple tool tracking data)
  • Save into scene file
  • Load from scene file
  • Browsing sequence items: automatic replay, prev/next item; ability to show multiple items at the same time
  • Modification of sequence items: add/delete, change bundle name, parameter

Approach, Plan

• Even after extensive MRML scene optimization, handling of large data sets (more 1000+ nodes) is not feasible due to the inefficiency of MRML widgets (node selector combo boxes, scene hierarchy trees; due to each widget maintaining its own qMRMLSceneModel)
• Plan: store one sequence bundle node in the scene and store each bundle as a private scene inside that sequence bundle node

Progress

• Initial implementation is available: https://subversion.assembla.com/svn/slicerrt/trunk/MultidimData/src

Use cases

• Tracked ultrasound image sequence review
• Adaptive RT image sequence review
• 4D Cardiac CT volume rendering
• DCE-MRI review