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The Evolution of a VR-based IGT Environment

The Evolution of a VR-based IGT Environment . Terry Peters, Robarts Research Institute David Gobbi, CEO, Atamai Inc. Motivation. Why AtamaiViewer? IGT research requires software! There was nothing out there in 1997 All IGT projects require similar components Leverage VTK, MINC

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The Evolution of a VR-based IGT Environment

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  1. The Evolution of a VR-based IGT Environment Terry Peters, Robarts Research Institute David Gobbi, CEO, Atamai Inc.

  2. Motivation • Why AtamaiViewer? • IGT research requires software! • There was nothing out there in 1997 • All IGT projects require similar components • Leverage VTK, MINC • Our own Tracking code IGT Workshop

  3. History • 1997 – New lab, new possibilities • Evolution: MINC • 1998-1999 • Adopt VTK, add Yves Starreveld (Surgeon-Programmer) • 2000 – company formed • Strong support from Robarts Institute • 2004 – funding from CFI, SGI • VASST project begins • AtamaiViewer is christened IGT Workshop

  4. Software Development Philosophy • Power to the students! • Most students are not programmers • Python scripting to complement C++ core • Students should use each other’s software! • Contribute to larger community • vtkImageReslice to vtkImageMapToColors (and everything in between) • VTK Python wrapping • VTK on OSX IGT Workshop

  5. AtamaiViewer plugin modules Tkinter GUI AtamaiViewer “core” Python Atamai Python Classes AtamaiVTK VTK C++ ITK Architecture IGT Workshop

  6. Expandability AtamaiViewer API Packages “Core” VASST EpilepsyViewer MPR Tracking Electrodes Volume Rendering Ultrasound SkullStripper Data IO Cine fMRI Modules IGT Workshop

  7. IGT Workshop

  8. Features • Tracking • Polaris, Aurora, XarTraX, Flock of Birds • Data Types • Images, meshes, point lists, transform files • Visualization • Stereo (monitor, HMD or workbench) • Polygons, volume rendering, image slices • Time-varying data • Cine cardiac viewing IGT Workshop

  9. Features • Multiple file formats • MINC, DICOM, VFF, Analyze, PNG, JPEG • Expandability • Modules • Packages (collections of modules) • customize front-end, change look and feel IGT Workshop

  10. Applications • Epilepsy Viewer • Atamai product (3 sites) • Stereotaxy Viewer • Frame-based (Parkinson’s) • VASST • Augmented Reality • AtamaiViewer “core” • Powerful in its own right IGT Workshop

  11. 111 4 50uA R Starreveld et al, 2000 112 0.22 PE 0.04 0.2 300 EP Atlas Database IGT Workshop

  12. Deep brain surgery Planning IGT Workshop

  13. Guidance for Cardiac Interventions IGT Workshop

  14. AR for port placement for Robotic CABG IGT Workshop

  15. VR tools US image US Transducer Track the tools with magnetic tracking systems IGT Workshop

  16. TEE image with virtual valve tool IGT Workshop

  17. ..with clipping device and “pre-op image” IGT Workshop

  18. Delineating the dynamic target • Target identified solely from pre-op images is unreliable • Interactively define target from US image IGT Workshop

  19. Clinical study IGT Workshop

  20. Challenges facing engineering of IGT systems • (non) availability of ubiquitous tracking environments • Non uniform software development environment • Closed real-time systems (particularly US) IGT Workshop

  21. How can NCIGT help? • Coordinate setting of standards for collaborative software development. • Provide management role • Stimulate coordinated multi-institutional research in new tracking technologies • Act as lobby group to pressure industry to make streaming 3D (esp US) more accessible from imaging systems IGT Workshop

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