Comparing Breast Screening Protocols: Inserting Catch Trials Does Not Improve Sensitivity over Double Screening.

ABSTRACT: Breast screening is an important tool for the early detection of breast cancers. However, tumours are typically present in less than 1% of mammograms. This low prevalence could cause radiologists to detect fewer tumours than they otherwise would, an issue known as the prevalence effect. The aim of our study was to investigate a novel breast screening protocol, designed to decrease the number of tumours missed by radiologists, without increasing their workload. We ran two laboratory-based experiments to assess the degree to which the novel protocol, called the catch trial (CT) protocol, resulted in greater sensitivity (d') than the double screener protocol (DS), currently utilised in Australia. In our first experiment we found evidence that the CT protocol resulted in a criterion shift rela

SUBMITTER: Chen W 

PROVIDER: S-EPMC5056692 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature