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Satisfaction of Search in Chest Radiography 2015
Journal article   Peer reviewed

Satisfaction of Search in Chest Radiography 2015

Kevin S Berbaum, Elizabeth A Krupinski, Kevin M Schartz, Robert T Caldwell, Mark T Madsen, Seung Hur, Archana T Laroia, Brad H Thompson, Brian F Mullan and Edmund A Franken
Academic radiology, Vol.22(11), pp.1457-1465
11/2015
DOI: 10.1016/j.acra.2015.07.011
PMCID: PMC4609286
PMID: 26363824

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Abstract

Two decades have passed since the publication of laboratory studies of satisfaction of search (SOS) in chest radiography. Those studies were performed using film. The current investigation tests for SOS effects in computed radiography of the chest. Sixty-four chest computed radiographs half demonstrating various “test” abnormalities were read twice by 20 radiologists, once with and once without the addition of a simulated pulmonary nodule. Receiver-operating characteristic detection accuracy and decision thresholds were analyzed to study the effects of adding the nodule on detecting the test abnormalities. Results of previous studies were reanalyzed using similar modern techniques. In the present study, adding nodules did not influence detection accuracy for the other abnormalities (P = .93), but did induce a reluctance to report them (P < .001). Adding nodules did not affect inspection time (P = .58) so the reluctance to report was not associated with reduced search. Reanalysis revealed a similar decision threshold shift that had not been recognized in the early studies of SOS in chest radiography (P < .01) in addition to reduced detection accuracy (P < .01). The nature of SOS in chest radiography has changed, but it is not clear why. SOS may be changing as a function of changes in radiology education and practice.
images Diagnostic Radiology interpretation observer performance quality assurance

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