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Viewing essentials

Viewing essentials. James Miller, Ph.D. ‡ . James Ross, M.Sc. ‡ , Xi Wang, Ph.D. ‡ , Steve Pieper, Ph.D. § , Wendy Plesniak, Ph.D. ¥. ‡ GE Research § Isomics ¥ Surgical Planning Laboratory, Brigham and Women’s Hospital. Requisites, expectations and adaptations.

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Viewing essentials

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  1. Viewing essentials James Miller, Ph.D.‡. James Ross, M.Sc.‡, Xi Wang, Ph.D.‡, Steve Pieper, Ph.D.§, Wendy Plesniak, Ph.D.¥ ‡GE Research §Isomics ¥Surgical Planning Laboratory, Brigham and Women’s Hospital

  2. Requisites, expectations and adaptations • Clinicians and researchers need and expect imaging platforms to provide stock capabilities • Window/level • Pan/zoom • Annotation • Probe • Measurement • Oblique reformat • Volume rendering • Lightbox • How do we adapt these concepts to a Slicer experience?

  3. Lightbox http://www.brighamandwomens.org/excellence/neuroscience.aspx ?

  4. Standard lightbox viewing http://www.brighamandwomens.org/excellence/neuroscience.aspx

  5. … with overlays

  6. … with annotations

  7. … with fiducials

  8. … with multiple reformations

  9. … with an editor X

  10. Oblique reformat • Anatomy is rarely predominantly aligned axially, sagitally, or coronally • Oblique reformation allows image display planes to be aligned to an anatomy’s principal axes Axial Oblique

  11. Standard oblique reformat CTRL-Right Button to manipulate reformation

  12. … with lightbox

  13. Comparing series and studies • Longitudinal analysis • Cross-sectional analysis

  14. Standard comparison of studies

  15. … with overlays

  16. … with annotations

  17. … with fiducials

  18. … after registration

  19. … with lightbox

  20. … with oblique reformation

  21. Applications • Atlas construction • Manual delineation • Quality control • Cross-sectional comparison of atlas subjects before and after aligning to common coordinate frame • Cross-sectional comparison of atlas subjects to constructed atlas • Atlas application • Comparison of atlas to new subject • Cross-sectional comparison of new subjects aligned with atlas • Longitudinal analysis • Response to therapy

  22. Image viewing is still predominantly 2D • Native format of acquisition • Precision dimensional measurements • Multiplanar reformat (axial, sagittal, coronal) provides a natural (perhaps comfortable) navigation paradigm • Lightbox provides a mechanism to display 3D relationships • Oblique reformats provide a mechanism to mitigate 3D effects (improve accuracy of dimensional measurements) • Longitudinal and cross-sectional comparisons build on the same framework of linked controls and coordinate frames • Slicer3 allows all these capabilities to be layered due incorporation of coordinate frames at a fundamental level of the viewing pipeline

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