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Exploring human-artificial intelligence interactions in a negative pragmatic trial of computer-aided polyp detection
Kate Watkins1, Uri Ladabaum2, Esther Olsen1
1Department of Health Policy, Stanford University School of Medicine, Stanford, California, USA.
Igie : Innovation, Investigation and Insights
|February 6, 2026
Summary
Artificial intelligence in endoscopy shows a gap between trial efficacy and real-world effectiveness. Colonoscopist trust in AI did not explain the null results of computer-aided detection (CADe) trials.
Area of Science:
- Gastroenterology
- Medical Artificial Intelligence
- Health Services Research
Background:
- Computer-aided detection (CADe) using artificial intelligence (AI) in endoscopy has shown promise in controlled trials.
- However, these positive results have not been consistently replicated in pragmatic trials, highlighting a gap between efficacy and effectiveness.
- Understanding human-AI interaction is crucial to address this discrepancy.
Purpose of the Study:
- To investigate colonoscopists' perceptions and experiences with AI-powered CADe systems.
- To explore reasons behind the null results observed in a pragmatic CADe trial.
- To gain insights into human-AI interactions in the context of endoscopic procedures.
Main Methods:
- A sequential, mixed-methodology approach was employed, combining surveys and semi-structured interviews.
- Colonoscopists completed surveys before and after using CADe, and again after trial results were disclosed.
- Thematic analysis was used to analyze qualitative data from surveys and interviews, with responses analyzed by baseline adenoma detection rate (ADR).
Main Results:
- High colonoscopist engagement, with 92% and 88% participation in surveys.
- Strong professional identity tied to endoscopic ability (96%) and sustained trust and enthusiasm for AI (82%-87%) despite null trial outcomes.
- Most colonoscopists (62%) were surprised by the null results, with no single explanation emerging from the qualitative data.
Conclusions:
- Colonoscopist trust and enthusiasm for AI/CADe do not explain the null findings in pragmatic trials.
- The study suggests that AI in endoscopy may need to evolve beyond optical recognition capabilities to fulfill its potential.
- Further research into AI's role in endoscopy should consider factors beyond detection accuracy.
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