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Related Experiment Video

Updated: May 6, 2026

Endoscopic Septoplasty with Limited Two-line Resection: Minimally Invasive Surgery for Septal Deviation
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Objective evaluation for endoscopic sinus surgeries' proficiency by image analysis for postoperative 3D sinus models.

Kaito Yamada1, Masanobu Suzuki2, Kou Miyaji1

  • 1Graduate school of Information Science and Technology, Hokkaido University, Sapporo, Hokkaido, Japan.

Auris, Nasus, Larynx
|August 27, 2025
PubMed
Summary

Objective assessment of endoscopic sinus surgery skills is now possible using 3D-printed models and CT imaging. This method correlates well with surgeon experience and certification, offering a reliable tool for surgical training.

Keywords:
3D slicer3D-printerChronic rhinosinusitisESSSurgical education

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Area of Science:

  • Medical simulation
  • Surgical education
  • Medical imaging analysis

Background:

  • Assessing endoscopic sinus surgery (ESS) proficiency is challenging due to anatomical variations.
  • 3D-printed sinus models offer standardized anatomy and realistic feel for surgical training.
  • Objective skill assessment is crucial for improving surgical outcomes.

Purpose of the Study:

  • To develop and validate a novel method for evaluating ESS skill proficiency.
  • To utilize CT image analysis of dissected 3D sinus models for objective skill assessment.
  • To compare the novel assessment method with existing surgical proficiency indices.

Main Methods:

  • Forty-seven otolaryngologists performed ESS on 3D-printed sinus models.
  • CT imaging and region growing segmentation analyzed postoperative surgical space expansion (ROI volume).
  • Results were compared with board certification, OSATS scores, and case experience.

Main Results:

  • Postoperative ROI volume averaged 24.48±4.34 cm³.
  • Board-certified surgeons showed significantly larger ROI volumes (p=0.03).
  • ROI volume positively correlated with OSATS scores (r=0.72) and case experience (r=0.51).

Conclusions:

  • A combination of standardized 3D models and CT image analysis provides a simple, objective ESS skill assessment tool.
  • This method demonstrates validity by correlating with surgeon experience and certification.
  • The approach offers a standardized and reproducible means for surgical skill evaluation.