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Distance sonification in image-guided neurosurgery.

Joseph Plazak1,2, Simon Drouin3, Louis Collins3

  • 1Department of Computer Science and Software Engineering & PERFORM Centre, Concordia University, Montréal, Canada.

Healthcare Technology Letters
|November 30, 2017
PubMed
Summary

Auditory feedback for surgical probe distance in neuronavigation may improve accuracy and reduce perceived difficulty. This system enhances image-guided surgery by providing sound cues alongside visual data.

Keywords:
audible feedbackauditory distance cuesauditory informationbiomedical optical imagingbraindistance informationdistance sonificationimage-guided neurosurgeryindividual surgical tasksintraoperative brain imaging systemlocating specified pointsmedical image processingneuronavigationneurophysiologypatient anatomypreoperative modelspreoperative scansonified distance informationsurgerysurgical openingssurgical probe locationthree-dimensional volumevisual information

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Area of Science:

  • Neurosurgery
  • Medical Technology
  • Human-Computer Interaction

Background:

  • Image-guided neurosurgery (neuronavigation) uses pre-operative models to visualize surgical probe location.
  • A limitation is surgeons diverting attention from the patient to the navigation system.
  • Improving surgeon focus and task efficiency is crucial in neurosurgery.

Purpose of the Study:

  • To design and evaluate a system that sonifies distance information between a surgical probe and anatomical targets.
  • To assess the utility of auditory distance cues in enhancing neuronavigation accuracy and usability.
  • To determine if combining auditory and visual feedback reduces perceived difficulty in locating targets.

Main Methods:

  • Developed a system to provide audible feedback of probe-to-target distance.
  • Integrated the sonification system into the Intraoperative Brain Imaging System (IBIS) Neuronav platform.
  • Conducted a user study with 15 participants to evaluate the system's performance and usability.

Main Results:

  • Combining auditory distance cues with visual information potentially increases accuracy in locating points on pre-operative scans.
  • The system may reduce the extent of surgical openings and increase the precision of surgical tasks.
  • Auditory and visual information integration was found to reduce the perceived difficulty of locating targets in 3D space.

Conclusions:

  • Sonified distance information is a potentially valuable addition to existing neuronavigation systems.
  • Integrating auditory feedback may enhance surgical accuracy, precision, and efficiency.
  • This approach could lead to less invasive procedures and improved patient outcomes.