Project Week 25/Human-Computer Interaction under sterile conditions

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Key Investigators

• Christian Hansen (University of Magdeburg, Germany)
• Julian Hettig (University of Magdeburg, Germany)
• Andras Lasso (PerkLab, Queen's)
• Benjamin Hatscher (University of Magdeburg, Germany)
• David Black (University of Bremen; Fraunhofer Institute for Medical Image Computing MEVIS, Bremen, Germany)
• Marco Nolden (German Cancer Research Center (DKFZ), Germany)
• Juan Ruiz Alzola (University of Las Palmas de Gran Canaria, Spain)
• Salvatore Scaramuzzino ("Magna Graecia" University - ASL Vercelli, Italy)

Project Description

Objective	Approach and Plan	Progress and Next Steps
Human-Computer Interaction under Sterile Conditions. Review of state of the art (tochless interaction) Development of new user interfaces to support surgical interterventions	Long, intensive conceptualization (2 days) of possibilities for gesture interaction and audio feedback for it We will need moderation kit (paper, pencil, markers, etc) Prototypes of possible auditory/visual feedback based on conceptualization With OSC communication protocol, David will make quick, flexible sound methods foot/eye interaction (?)	Connected Slicer to OSC: added SlicerSoundControl extension (https://github.com/SlicerIGT/SlicerSoundControl), see below for necessary OSC message names Tested avoidance warning with experimental integration into breast lumpectomy navigation module (LumpNav): https://youtu.be/gSz8IHmogMo tried using gestures to zoom windows in and out

Illustrations

400px OpenSoundControl module for configuring and testing OpenSoundControl server communication	400px SoundNavigation module for automatically generating OpenSoundControl messages for tool navigation, from tool and reference transform nodes

SlicerSoundControl

see https://github.com/SlicerIGT/SlicerSoundControl

Environment for Testing Slicer Sound Control

OSC Message names:

Base name: /SoundNav/Instrument/

Translation: each fro 0 to 100 mm

• /TranslationX
• /TranslationY
• /TranslationZ
• /Distance (absolute distance)

Translation: each from 0 to 180 degrees

• /OrientationX
• /OrientationY
• /OrientationZ
• /Orientation (overall orientation)

GUI for test:

Environment for Sterile Gestures (planned, not yet implemented)

• In/ out
  • --> "/InOut 0" out
  • --> "/InOut 1" in
• Edge distance (0 to 3 cm?)
  • --> "/EdgeDist x" where x is float between 0 and 3

Ambient

• Overall acceleration
  • --> "/OverallAccel x" where x is float between 0 and 1
• Background noise
• Absolute position (x/y, not depth) to show current selected window
  • --> "/AbsPolX x" where x is float between 0 and 1
  • --> "/AbsPolY x" where x is float between 0 and 1

Gestures

• select image
  • --> "/SelectGesture x" where x is gesture number
• zoom to left window
• zoom to right window
• put back into small viewer

Background

Example of previous related work using standard surgical gloves and OR compatible plastic draping confirmed to be compatible with sterile requirements at BWH AMIGO: ]

References

Mewes et al. (2017) Touchless Interaction with Software in Interventional Radiology and Surgery: A Systematic Literature Review

Hettig et al. (2017) Comparison of Gesture and Conventional Interaction Techniques for Interventional Neuroradiology