Abstract
Objective: The aim of this study was to evaluate the diagnostic agreement when a general practitioner and subsequently a specialist (radiologist/gynecologist) performed point-of-care ultrasound examinations for certain abdominal and gynecological conditions of low to moderate complexity.Design: A prospective study of inter-rater reliability and agreement.Setting: Patients were recruited and initially scanned in general practice. The validation examinations were conducted in a hospital setting.Subjects: A convenient sample of 114 patients presenting with abdominal pain or discomfort, possible pregnancy or known risk factors toward abdominal aortic aneurism were included.Main outcome measures: Inter-rater agreement (Kappa statistic and percentage agreement) between ultrasound examinations by general practitioner and specialist for the following conditions: gallstones, ascites, abdominal aorta >5 cm, intrauterine pregnancy and gestational age.Results: An overall Kappa value of 0.93 (95% confidence interval (CI): 0.87–0.98) was obtained. Ascites, abdominal aortic diameter >5cm, and intrauterine pregnancy showed Kappa values of 1.Conclusion: Our study showed that general practitioners performing point-of-care ultrasound examinations with low-to-moderate complexity had a very high rate of inter-rater agreement compared with specialists.
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