Redesigning the DTITool

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The final presentation for the Design Case project of the User System Interaction program generation 2010.

The DTITool is a tool for visualizing medical data. The quality of the visual

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  • Initial research1stuser tests and results2nd user tests and resultsFinal designsRetrospective
  • Initial research1stuser tests and results2nd user tests and resultsFinal designsRetrospective
  • Like = such as\\Mention something about plugins
  • Like = such as\\Mention something about plugins
  • Like = such as\\Mention something about plugins
  • Initial research1stuser tests and results2nd user tests and resultsFinal designsRetrospective
  • Fasten animation of sketches
  • Change DTI to DTITool or so, former is arguableChange second to unintuitive, cumbersome, blablabla and shit like thatTalk about positive stuff about DTITool -> potential, great visuals
  • Talk about positive stuff about DTITool -> potential, great visuals
  • Tracking and visualizing fibers
  • Initial research1stuser tests and results2nd user tests and resultsFinal designsRetrospective
  • Go to next slide by the end of vid
  • Empty cell = no recordAdd user label to rows
  • Game storming
  • What is the basic package? DTITool is plugin basedUsers can develop own plugins of which we have no control over
  • Initial research1stuser tests and results2nd user tests and resultsFinal designsRetrospective
  • 2nd round of testing
  • Initial research1stuser tests and results2nd user tests and resultsFinal designsRetrospective
  • Initial research1stuser tests and results2nd user tests and resultsFinal designsRetrospective
  • Redesigning the DTITool

    1. 1. Redesigning the DTITool Nikolay Chupriyanov Glenn Veugen Tin de Zeeuw Biyong Zhang USI 2011
    2. 2. DTI and DTIToolInitial research 1st user tests 2nd user tests Final designs Retrospective
    3. 3. DTI and DTIToolInitial research 1st user tests 2nd user tests Final designs Retrospective
    4. 4. What is Diffusion Tensor Imaging?
    5. 5. What is Diffusion Tensor Imaging?DTI is a magnetic resonance imaging (MRI) method
    6. 6. What is Diffusion Tensor Imaging?DTI is a magnetic resonance imaging (MRI) method Measures tissue such as white matter or muscle fibers
    7. 7. The DTIToolVisualization tool for DTI data Explore DTI data Quantify DTI data
    8. 8. DTI and DTIToolInitial research 1st user tests 2nd user tests Final designs Retrospective
    9. 9. Initial researchGetting acquainted with Diffusion Tensor Imaging – Interviews with doctors and researchersSeeing how DTITool is used – Observation of experts using DTITool – Heuristic evaluationList with issues and feature requests – From 2 researchers and MMC Veldhoven
    10. 10. Early sketches and ideas
    11. 11. Initial conclusionsDTITool is great for visualizing data There are many potential users
    12. 12. Initial conclusionsDTITool is not being applied in the medical fieldThe UI is unintuitive and cumbersome to the user
    13. 13. Use case for testing Visualizing tracked fibers
    14. 14. Explore MRI data
    15. 15. Explore MRI dataDraw Regions of Interest
    16. 16. Explore MRI data Draw regions of InterestTrack and visualize fibers
    17. 17. Explore MRI data Draw regions of Interest Track and visualize fibers Exportvisualizations
    18. 18. DTI and DTIToolInitial research 1st user tests 2nd user tests Final designs Retrospective
    19. 19. 1st user testsScenario based on initial research 9 expert users participated  4 Medical imaging background  2 With DTITool experience  3 HCI background
    20. 20. Old video
    21. 21. ResultsUser # T1 T2.1 T2.2 T2.3 T2.4 T3 T4 T5 T61 fail pass pass fail pass fail fail fail pass2 No record pass fail fail fail pass pass pass fail3 pass pass pass fail pass pass pass pass fail4 pass pass pass fail pass fail fail fail fail5 pass pass pass pass pass fail fail fail fail6 pass pass pass pass pass fail pass pass pass7 pass pass pass pass pass pass fail fail pass8 pass pass pass pass pass pass pass pass pass9 pass pass pass pass pass pass pass pass pass 88% 100% 88% 55% 88% 55% 55% 55% 55%
    22. 22. Lack of feedback in viewports Interface text is not intuitive Doesn’t really know what to save“Dropdown sucks” No clear cuesROI drawing not straight-forward “Tool seemed to be clean and simple, but it’s this kind of simplicity that hides the compl Poor representation of available plugin Not always clear how to zoomRight panel is “If I only save fibers, I lose the background information of the planescluttered to draw ROI Unclear where
    23. 23. • Composed scenario based on initial research• Processed results by means of affinity diagram Game storming
    24. 24. Improve the basic package
    25. 25. DTI and DTIToolInitial research 1st user tests 2nd user tests Final designs Retrospective
    26. 26. 2nd user tests Prototyping time! Validating prototypes heuristically Testing round with7 users usersNew and “recycled” users
    27. 27. Results of prototype testingUser T1 T2 T3.1 T3.2 T3.3 T3.4 T3.5 T4 T5 T6 T7 T8 T9#1 pass pass pass fail pass No record No record fail pass pass pass pass pass#2 pass pass pass pass pass pass fail fail pass pass pass pass pass#3 pass pass pass pass pass pass fail fail pass pass pass pass pass#4 pass pass pass pass pass pass fail fail pass pass pass pass pass#5 pass pass pass pass pass pass No record fail fail fail pass pass fail#6 pass pass pass pass pass No record No record pass pass pass pass pass pass#7 pass pass pass pass pass pass pass pass pass pass pass pass pass 100% 100% 100% 85% 100% 100% 25% 28% 85% 85% 100% 100% 85%
    28. 28. Comparison between tests
    29. 29. DTI and DTIToolInitial research 1st user tests 2nd user tests Final designs Retrospective
    30. 30. Tooltips & help
    31. 31. How it was Plug-in list navigation
    32. 32. How it was
    33. 33. How it was
    34. 34. The new right panel• Hick’s law in play• Supports the standardworkflow
    35. 35. Viewport manipulation and control
    36. 36. How we redesigned it and why
    37. 37. ROI drawing and editing
    38. 38. How it was• Also: ask for video by Tin
    39. 39. How we redesigned it and why
    40. 40. Fiber tracking and visualisation
    41. 41. Project management
    42. 42. Exporting images
    43. 43. How it was
    44. 44. How we redesigned it and why
    45. 45. Final result High-fidelity interactive prototypeAn accompanying specification document explaining the design changes and rationale Sketches and ideas that have not been implemented in hi-fi prototype
    46. 46. DTI and DTIToolInitial research 1st user tests 2nd user tests Final designs Retrospective
    47. 47. What have we learned
    48. 48. Go to users early and often
    49. 49. Sketch a lotThe more you sketch and throw away – the better
    50. 50. Thank you for your attention

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