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Utility of the LevelCheck Algorithm for Decision Support in Vertebral Localization.

Tharindu De Silva1, Sheng-Fu L Lo2, Nafi Aygun3

  • 1Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Maryland.

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|April 2, 2016
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Summary

The LevelCheck algorithm aids spine surgeons by accurately labeling vertebrae on radiographs, improving confidence and surgical workflow. It showed 100% geometric accuracy in assisting decision support for target localization.

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Area of Science:

  • Spine surgery
  • Medical imaging
  • Surgical navigation

Background:

  • Spine surgery requires precise vertebral level localization.
  • Intraoperative radiographs and preoperative CT scans are crucial for planning.
  • Accurate localization is challenging due to anatomical variations and image quality.

Purpose of the Study:

  • To evaluate the utility of the LevelCheck algorithm for vertebrae localization in spine surgery.
  • To assess LevelCheck's performance as a decision support tool.
  • To identify clinical scenarios where LevelCheck is most beneficial.

Main Methods:

  • Retrospective analysis of 398 spine surgery cases.
  • Utilized an automatic radiographic labeling algorithm (LevelCheck).
  • Expert consensus from three spine surgeons evaluating performance, utility, and workflow integration.

Main Results:

  • LevelCheck was helpful in 42.2% of cases and improved confidence in 30.6%.
  • Demonstrated 100% geometric accuracy in overlaying vertebral labels.
  • Beneficial in cases with obscured landmarks, poor image quality, or anatomical variations.

Conclusions:

  • LevelCheck shows potential as a valuable decision support tool for vertebral localization in spine surgery.
  • The algorithm can enhance surgical accuracy and confidence.
  • Its utility is particularly noted in complex or challenging imaging scenarios.