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Type: Journal article
Title: Accuracy of emergency department bedside ultrasonography
Author: Rowland, J.
Kuhn, M.
Bonnin, R.
Davey, M.
Langlois, S.
Citation: Emergency Medicine Australasia, 2001; 13(3):305-313
Publisher: Blackwell Science Asia Pty Ltd
Issue Date: 2001
ISSN: 1742-6731
Statement of
Rowland, Jane L ; Kuhn, Marie ; Bonnin, Robert Ll ; Davey, Michael J ; Langlois, Suzanne Lep
Abstract: <h4>Objectives</h4>To determine which focused ultrasound examinations can be interpreted accurately by emergency physicians who have limited training and experience. To determine whether image quality and/or the operator's level of confidence in the findings correlates with accurate scan interpretation.<h4>Methods</h4>A prospective sample of consenting adult emergency department patients with the conditions was selected for study. Scans were performed by emergency physicians who had attended a 3-day focused ultrasound examinations instruction course. All scans were videotaped and subsequently reviewed by a radiologist. Accuracy was determined by comparing the emergency physicians scan interpretation with preselected gold standards. Chi-squared tests were employed to determine if the individual performing the scan, the type of scan, patient's body habitus, image quality and/or operator confidence were reliable predictors of accuracy.<h4>Results</h4>Between September 1997 and January 1999, 221 scans were studied. Accuracy varied widely depending on the type of scan performed: aortic scans were 100% accurate whereas renal scans had 68% accuracy. On bivariate analyses, there was little variation in the various operators' levels of proficiency and accuracy of interpretation was not associated with patient body habitus, image quality or operator confidence.<h4>Conclusions</h4>Neophytes can accurately perform and interpret aortic scans; additional training and/or experience appear to be necessary to achieve proficiency in conducting most of the other scans studied. Inexperienced operators are unable to discern whether their scan interpretations will prove accurate.
Keywords: Ascitic Fluid
Gallbladder Diseases
Ureteral Calculi
Venous Thrombosis
Wounds and Injuries
Tomography, X-Ray Computed
Sensitivity and Specificity
Chi-Square Distribution
Prospective Studies
Predictive Value of Tests
Middle Aged
Emergency Medical Services
Point-of-Care Systems
DOI: 10.1046/j.1035-6851.2001.00233.x
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Dentistry publications

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