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Measuring and Teaching Confidence Calibration Among Radiologists: A Multi-Institution Study.
Michael L Richardson1, Behrang Amini2, Nicholas M Beckmann3
1Department of Radiology, University of Washington, Seattle, Washington.
Radiologist calibration on anterior cruciate ligament (ACL) tear detection improves with experience and can be taught to residents. This self-assessment tool aids in quality improvement for medical image interpretation.
Area of Science:
- Radiology
- Medical Education
- Diagnostic Imaging
Background:
- Radiologist confidence calibration is crucial for accurate image interpretation.
- Assessing calibration in anterior cruciate ligament (ACL) tear detection is clinically significant.
Purpose of the Study:
- To evaluate radiologist calibration in identifying ACL tears on MRI.
- To determine if teaching improves resident calibration.
Main Methods:
- A 30-image test (ACL tears/normal) was administered to radiologists and trainees.
- Confidence levels (0-100%) for ACL tear presence were recorded.
- Cross-sectional and longitudinal data were collected.
Main Results:
- Calibration improved significantly with increasing radiologist experience (P=.020).
- Calibration significantly improved in residents after a short training period (P=.028).
Conclusions:
- Confidence calibration is a valuable tool for radiologist self-assessment and quality improvement.
- Experience enhances calibration in ACL tear classification.
- Calibration can be effectively taught to residents.
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