RSNA 2011: Substantial miss rates in mammography may be unavoidable cognitive function
Published
30 November 2011
| Article by Excerpta Medica
| Tags:
mammography,
cognitive-decline
RSNA 2011: Substantial miss rates in mammography may be unavoidable cognitive function
Confirming cognitive evaluations performed in other fields, a study testing the effect of low and high prevalence on the ability of radiologists to detect cancers on mammograms confirmed that miss rates go up as prevalence rates goes down. According to the author of the study, the increased error rates appear to be an innate consequence of cognitive function. According to the lead author of this study, even individuals who attempt to compensate for the effect of low prevalence rates by increasing their scrutiny of images are not able to overcome a dulling effect from evaluating a large number of images with a low probability of a positive result. In this study, computer-assisted technology was used for all screens but did not eliminate the increased miss rates associated with low prevalence. This may be the most significant obstacle to reducing miss rates, which are now estimated to be in the range of 20% to 30%.
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