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HoloInjection: augmented reality support for CT-guided spinal needle injections.

Florian Heinrich1,2, Luisa Schwenderling1,2, Mathias Becker2,3

  • 1Faculty of Computer Science, University of Magdeburg, Universitätsplatz 2, 39106 Magdeburg, Germany.

Healthcare Technology Letters
|February 11, 2020
PubMed
Summary

Augmented reality (AR) navigation systems can improve needle placement accuracy in minimally-invasive spinal procedures. This study shows AR effectively reduces out-of-plane errors, aiding surgical precision.

Keywords:
CT-guided spinal needle injectionsaugmented realityaugmented reality supportcomputerised tomographyhigh registration accuracyholoinjectionimage registrationin-plane orientation errorsmedical image processingminimally-invasive interventionsmixed reality glass Microsoft HoloLensneedle insertionsneedlesout-of-plane needle orientation errorsout-of-plane orientation errorsphantomsradiation therapyradiological imagingspinal targets

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Area of Science:

  • Medical Technology
  • Surgical Navigation
  • Augmented Reality Applications

Background:

  • Accurate needle placement is critical for minimally-invasive spinal interventions.
  • Current radiological guidance for needle insertions has limitations.
  • Augmented reality (AR) offers potential for enhanced navigation support.

Purpose of the Study:

  • To develop and evaluate a prototypical AR application for guiding spinal needle insertions.
  • To assess the registration accuracy of the AR system.
  • To compare the effectiveness of different AR visualization concepts in reducing needle orientation errors.

Main Methods:

  • Development of an AR application using Microsoft HoloLens for spinal needle guidance.
  • Measurement of the system's registration accuracy.
  • A comparative study evaluating three visualization concepts for in-plane and out-of-plane needle orientation errors.

Main Results:

  • The AR system demonstrated high registration accuracy.
  • The AR prototype proved effective in reducing out-of-plane needle orientation errors.
  • In-plane orientation errors remained comparatively high, indicating areas for improvement.

Conclusions:

  • The developed AR system shows promise for improving spinal needle insertion accuracy.
  • Further refinements are needed to address in-plane errors and optimize visualization before clinical trials.
  • AR technology has the potential to enhance minimally-invasive spinal therapies.