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Related Experiment Video

Updated: Apr 12, 2026

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A gesture-controlled projection display for CT-guided interventions.

A Mewes1, P Saalfeld2,3, O Riabikin4

  • 1Computer-Assisted Surgery Group, Faculty of Computer Science, Institute of Simulation and Graphics, University of Magdeburg, PF 4120, 39106, Magdeburg, Germany. andre.mewes@ovgu.de.

International Journal of Computer Assisted Radiology and Surgery
|May 11, 2015
PubMed
Summary
This summary is machine-generated.

Physicians can now control intervention software directly using a new gesture-controlled projection display during computed tomography (CT) interventions. This system enhances physician-machine interaction in sterile environments, offering intuitive control for improved workflow.

Keywords:
Computer-assisted surgeryGesture controlHuman–computer interactionIntra-operative visualization

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Area of Science:

  • Medical Imaging
  • Human-Computer Interaction
  • Interventional Radiology

Background:

  • Physician-machine interaction during interventional imaging is limited by sterile environments and workspace restrictions.
  • Direct control of intervention software is challenging in computed tomography (CT)-based procedures.

Purpose of the Study:

  • To develop and evaluate a gesture-controlled projection display for natural physician-machine interaction during CT interventions.
  • To enable direct control of intervention software within a sterile environment.

Main Methods:

  • A projection display was developed, projecting a graphical user interface onto a radiation shield.
  • Hand gestures were captured and classified using a Leap Motion Controller.
  • A gesture set for 2D image exploration and 3D object manipulation was proposed and evaluated in a user study with 12 participants.

Main Results:

  • The gesture-controlled display and interaction concept were accepted by clinical users.
  • Gesture recognition was robust, with potential for improvement.
  • Gesture training was rapid (under 10 minutes), and gestures were intuitive and logically linked to software functions.

Conclusions:

  • The gesture-controlled projection display provides radiologists with full control of intervention software.
  • This technology offers new avenues for direct physician-machine interaction in CT-based interventions.
  • The system is suitable for integration into future interventional suites.