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Automatic Surgery in Transcatheter Aortic Valve Replacement Using Augmented Reality
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Augmented reality endoscopic system (ARES): preliminary results.

Marco Caversaccio1, Jaime Garcia Giraldez, Ramesh Thoranaghatte

  • 1Department of ORL, Head and Neck Surgery, Inselspital, Bern University Hospital, Switzerland. marco.caversaccio@insel.ch

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This study presents a novel augmented reality (AR) system for endoscopic surgery. The AR system enhances surgical views by overlaying 3D models and CT scans, improving accuracy and aiding visualization of hidden structures.

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Area of Science:

  • Medical Imaging
  • Surgical Technology
  • Computer-Assisted Surgery

Background:

  • Endoscopic surgery faces challenges with anatomical landmark identification due to altered anatomy or obscured views.
  • Augmented reality (AR) offers a potential solution to enhance the surgeon's visual field during procedures.

Purpose of the Study:

  • To develop and evaluate a novel augmented reality system for endoscopic surgery.
  • To improve visualization of critical structures and preoperative plans within the endoscopic view.

Main Methods:

  • An AR system was developed using optical markers for dynamic reference tracking of the skull and endoscope.
  • The system was calibrated using checkerboard patterns and Matlab, integrating CT data as overlays.
  • Accuracy was assessed on a plastic skull model by comparing real and augmented images.

Main Results:

  • The augmented reality system achieved sub-millimeter accuracy, with a mean error of 1-2 mm.
  • The system demonstrated the capability to overlay 3D models and CT scans onto the endoscopic video stream.

Conclusions:

  • A novel augmented reality system for endoscopic surgery has been successfully developed.
  • This system enhances surgical information by highlighting hidden structures and providing CT overlays, thereby improving operational quality.