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Erschienen in: Emergency Radiology 6/2010

01.11.2010 | Original Article

Influence of body habitus and use of oral contrast on reader confidence in patients with suspected acute appendicitis using 64 MDCT

verfasst von: Stephan W. Anderson, James T. Rhea, Holly N. Milch, Al Ozonoff, Brian C. Lucey, Jorge A. Soto

Erschienen in: Emergency Radiology | Ausgabe 6/2010

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Abstract

The purpose of this study is to evaluate how body habitus affects reader confidence in diagnosing acute appendicitis and appendiceal visualization using 64 MDCT technology with and without oral contrast. We conducted a HIPAA compliant, IRB approved study of adult patients presenting to the Emergency Department with nontraumatic abdominal pain. Subjects were randomized to two groups: 64 MDCT scans performed with oral and intravenous contrast or scans performed solely with intravenous contrast. Three radiologists established their confidence about the presence of appendicitis as well as recording whether the appendix was visualized. Reader confidence in diagnosing acute appendicitis was compared between the two groups for the three readers. The impact of patient BMI and estimated intra-abdominal fat on reader confidence in diagnosing appendicitis was determined. Finally, a comparison of the effect of BMI and intra-abdominal fat on appendiceal visualization between the two groups was carried out. Three hundred three patients were enrolled in this study. There was a statistically significant difference in confidence based on BMI for reader 2, group 1 in diagnosing appendicitis. No further statistically significant differences in reader confidence for diagnosing appendicitis based on BMI or intra-abdominal fat were identified. There was no influence of BMI or intra-abdominal fat on appendiceal visualization. Increasing BMI was seen to improve reader confidence for one of three readers in patients that received both oral and intravenous contrast. No further effects of BMI or intra-abdominal fat on confidence in diagnosing or excluding appendicitis were seen. Neither BMI nor intra-abdominal fat were seen to influence appendiceal visualization.
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Metadaten
Titel
Influence of body habitus and use of oral contrast on reader confidence in patients with suspected acute appendicitis using 64 MDCT
verfasst von
Stephan W. Anderson
James T. Rhea
Holly N. Milch
Al Ozonoff
Brian C. Lucey
Jorge A. Soto
Publikationsdatum
01.11.2010
Verlag
Springer-Verlag
Erschienen in
Emergency Radiology / Ausgabe 6/2010
Print ISSN: 1070-3004
Elektronische ISSN: 1438-1435
DOI
https://doi.org/10.1007/s10140-010-0875-x

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