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Creation of a High-Fidelity, Low-Cost, Intraosseous Line Placement Task Trainer via 3D Printing
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Development and initial validation of an endoscopic part-task training box.

Christopher C Thompson1, Pichamol Jirapinyo1, Nitin Kumar1

  • 1Division of Gastroenterology, Brigham and Women's Hospital, Boston, Massachusetts, USA.

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Summary
This summary is machine-generated.

A new endoscopic simulator and scoring system were developed to objectively assess trainee competence. This validated tool helps determine when fundamental endoscopic skills are mastered before patient procedures.

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Area of Science:

  • Medical Education
  • Surgical Simulation
  • Gastroenterology

Background:

  • Lack of objective methods to assess endoscopy trainee progress and technical competence.
  • Need for validated tools to standardize skill acquisition in endoscopy.

Purpose of the Study:

  • Develop an endoscopic part-task simulator.
  • Validate a scoring system for assessing fundamental endoscopic skills.

Main Methods:

  • Kinematic analysis, literature review, and expert interviews to define skills.
  • Development of simulator prototypes and scoring systems.
  • Evaluation of validity evidence for content, internal structure, and response process.

Main Results:

  • A five-module training box (knob control, torque, retroflexion, polypectomy, navigation) was created.
  • High content validity index (CVI) for realism (0.88), relevance (1.00), and representativeness (0.88).
  • 82% found the simulator could differentiate ability levels; 93% supported its use for pre-patient assessment. Reproducible and reliable scoring demonstrated.

Conclusions:

  • A part-task endoscopic simulator and scoring system were successfully developed.
  • Demonstrated validity evidence for content, internal structure, and response process.
  • Provides an objective method for assessing fundamental endoscopic skills and trainee competence.