Trauma in CT: The Role of Severe Injury on Satisfaction of Search Revised

Kevin M Schartz; Mark T Madsen; John Kim; Riko Ohashi; Kenjirou Ohashi; George Y El-Khoury; Robert T Caldwell; Edmund A Franken Jr; Kevin S Berbaum

doi:10.1016/j.jacr.2016.04.014

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Trauma in CT: The Role of Severe Injury on Satisfaction of Search Revised

Journal article

Open access

Trauma in CT: The Role of Severe Injury on Satisfaction of Search Revised

Kevin M Schartz, Mark T Madsen, John Kim, Riko Ohashi, Kenjirou Ohashi, George Y El-Khoury, Robert T Caldwell, Edmund A Franken Jr and Kevin S Berbaum

Journal of the American College of Radiology, Vol.13(8), pp.973-978.e4

08/2016

DOI: 10.1016/j.jacr.2016.04.014

PMCID: PMC4975624

PMID: 27325469

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Abstract

The satisfaction-of-search (SOS) effect occurs when an abnormality on an image is missed because another is found. The aim of this experiment was to test whether severe distracting fractures control the magnitude of SOS on other fractures when both appear in a single CT image. The institutional review board approved this study. The experimental (SOS) condition included 35 cervical spine CT cases, all of which contained severe cervical spine injuries. For each of these cases, a similar case was found that had no injuries. Image modification software was developed to add simulated fractures to each pair of cases, with and without a major injury. Sixteen different minor fractures were added to 16 of the 35 pairs of images. The 35 cases without native injuries constituted a control (non-SOS) condition mixed in a random order. Twenty radiologists read 35 mixed cases in each of two sessions. False-positive evaluations were collected only for cases without simulated fractures. An SOS effect on the detection of simulated fractures was not observed. There was a nonsignificant (P = .07) finding of poorer detection in the presence of cases with severe injuries. However, the magnitude of the effect was no greater than has been observed for less severe distracting injuries. The outcome agrees with the results of two previous experiments that failed to yield an SOS effect associated with detecting severe injuries, suggesting that the severity of a distracting injury does not determine whether a second injury is discovered.

Reproducibility of Results

Prevalence

Multiple Trauma - diagnostic imaging

Humans

Middle Aged

Spinal Fractures - epidemiology

Male

Multiple Trauma - epidemiology

Trauma Severity Indices

Spinal Fractures - diagnostic imaging

Tomography, X-Ray Computed - statistics & numerical data

Diagnostic Errors - prevention & control

Sensitivity and Specificity

Clinical Competence - statistics & numerical data

Adult

Female

Iowa - epidemiology

Aged

Diagnostic Errors - statistics & numerical data

Observer Variation

Details

Title: Subtitle: Trauma in CT: The Role of Severe Injury on Satisfaction of Search Revised
Creators: Kevin M Schartz - Department of Radiology, University of Iowa Roy J. and Lucille A. Carver College of Medicine, Iowa City, Iowa. Electronic address: kevin-schartz@uiowa.edu
Mark T Madsen - Department of Radiology, University of Iowa Roy J. and Lucille A. Carver College of Medicine, Iowa City, Iowa
John Kim - Section of Neuroradiology, Brigham and Women's Hospital, Boston, Massachusetts
Riko Ohashi - Northwestern University, Evanston, Illinois
Kenjirou Ohashi - Department of Radiology, University of Iowa Roy J. and Lucille A. Carver College of Medicine, Iowa City, Iowa
George Y El-Khoury - Department of Radiology, University of Iowa Roy J. and Lucille A. Carver College of Medicine, Iowa City, Iowa
Robert T Caldwell - Department of Radiology, University of Iowa Roy J. and Lucille A. Carver College of Medicine, Iowa City, Iowa
Edmund A Franken Jr - Department of Radiology, University of Iowa Roy J. and Lucille A. Carver College of Medicine, Iowa City, Iowa
Kevin S Berbaum - Department of Radiology, University of Iowa Roy J. and Lucille A. Carver College of Medicine, Iowa City, Iowa
Resource Type: Journal article
Publication Details: Journal of the American College of Radiology, Vol.13(8), pp.973-978.e4
DOI: 10.1016/j.jacr.2016.04.014
PMID: 27325469
PMCID: PMC4975624
NLM abbreviation: J Am Coll Radiol
ISSN: 1546-1440
eISSN: 1558-349X
Publisher: United States
Grant note: R01 EB000145 / NIBIB NIH HHS
Language: English
Date published: 08/2016
Academic Unit: Radiology
Record Identifier: 9984051877802771

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