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Development of an Automated Smartphone-Based Suture Evaluation System.
Toshiyuki Yamada1, Hisao Suda2, Akihiro Yoshitake3
1Department of Cardiovascular Surgery, Nagoya City University Graduate School of Medicine Sciences, Nagoya, Japan; Department of Cardiovascular Surgery, Keio University, Tokyo, Japan.
Journal of Surgical Education
|January 23, 2022
Summary
A new smartphone app, e-Suture, objectively quantifies surgical suturing skills. This tool accurately evaluates trainee performance in stitching fragile materials, correlating well with expert assessments for improved surgical education.
Area of Science:
- Surgical Education Technology
- Medical Simulation
- Objective Skill Assessment
Background:
- Quantifying surgical skill is crucial for effective training.
- Current methods for evaluating suturing skills can be subjective.
- There is a need for objective tools to assess surgical proficiency in trainees.
Purpose of the Study:
- To develop a smartphone application for objective quantification of surgical suturing skills.
- To evaluate the accuracy and reliability of the developed application in assessing trainee performance.
- To provide an objective measure for surgical skill development in novice surgeons.
Main Methods:
- Development of the e-Suture smartphone application for automated surgical skill evaluation.
- The application analyzes needle insertion/extraction accuracy, suture deflection, material tears, and time.
- A scoring algorithm using a sigmoid function was implemented and calibrated on 20 training cases.
Main Results:
- The e-Suture prototype was successfully developed and completed.
- e-Suture rankings showed significant correlation with expert evaluations (r=0.728, p=0.000).
- Accuracy scoring by e-Suture strongly correlated with expert overall ratings (r=0.836, p=0.000).
Conclusions:
- The e-Suture application provides an accurate and objective method for quantifying novice surgeons' suturing skills.
- This technology can facilitate effective skill development in surgical training.
- Future research should focus on expanding data collection and applying the tool to diverse surgical techniques.

