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Visual memory effects on intraoperator study design: determining a minimum time gap between case reviews to reduce
W Scott Campbell1, Geoffrey A Talmon2, Kirk W Foster2
1From the Department of Pathology and Microbiology and wcampbel@unmc.edu.
American Journal of Clinical Pathology
|February 20, 2015
Summary
Pathologists recalled 40% of previously seen slides after 2 weeks and 31% after 4 weeks. These recall rates suggest that intraobserver case review intervals impact study design.
Area of Science:
- Medical diagnostics
- Pathology
- Medical education
Background:
- Intraobserver variability is a significant concern in pathology.
- Understanding case recall is crucial for designing reliable diagnostic studies.
Purpose of the Study:
- To determine optimal test intervals for intraobserver case reviews.
- To minimize the impact of case recall on study outcomes.
Main Methods:
- Three pathologists reviewed 120 slides.
- They were re-challenged with 60 previously seen and 60 new slides after 2-week and 4-week intervals.
- Pathologists indicated recall of previously seen slides.
Main Results:
- After 2 weeks, pathologists recalled 40% of previously seen cases.
- After 4 weeks, recall decreased to 31% of previously seen cases.
- Recall rates varied among individual pathologists.
Conclusions:
- Pathologists demonstrate memory recall of cases at both 2 and 4 weeks.
- Recall rates are substantial enough to influence the design of intraobserver studies.
- Further research is needed to establish optimal review intervals.
