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Related Experiment Videos

Can a checklist reduce SOS errors in chest radiography?

Kevin Berbaum1, Edmund A Franken, Robert T Caldwell

  • 1Department of Radiology, 3170 Medical Laboratories, University of Iowa, Iowa City, IA 52242, USA. kevin-berbaum@uiowa.edu

Academic Radiology
|February 21, 2006
PubMed
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A formal checklist did not reduce satisfaction of search (SOS) effects in chest radiology and led to poorer performance compared to verbalizing search. The findings suggest checklists are not warranted for counteracting SOS.

Area of Science:

  • Medical Imaging
  • Radiology
  • Cognitive Psychology

Background:

  • Satisfaction of search (SOS) is a phenomenon where errors occur due to premature closure during visual search.
  • Previous research indicated verbalizing attention focus might mitigate SOS in chest radiograph interpretation.

Purpose of the Study:

  • To evaluate if a formal checklist, compared to verbalizing attention, reduces SOS effects in chest radiology.
  • To assess the impact of checklists on diagnostic performance in interpreting chest radiographs.

Main Methods:

  • Twenty radiologists interpreted 57 chest radiographs twice: once with a checklist and once without.
  • Diagnostic performance was measured using the area under the receiver operating characteristic (ROC) curve.
  • Results were compared to a prior study using verbalization of search strategy.

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Main Results:

  • No SOS effect was observed when using the checklist.
  • However, overall ROC performance was significantly poorer with the checklist (0.68) compared to verbalizing search (0.75).

Conclusions:

  • A formal checklist is not recommended for counteracting SOS in chest radiology.
  • Verbalizing the search process appears more effective than an imposed checklist, likely due to better alignment with radiologists' internal search strategies.