prospectively evaluated the interobserver agreement in US examination of the gallbladder and the biliary tract performed by an experienced and a novice radiologist: they report that the novice radiologist’s expertise in the primary
diagnosis of uncomplicated gallstone disease was as good as the one provided by the experienced colleague and the significant interobserver difference in the
measurements of the thickness of the gallbladder wall and the common bile duct diameter might indicate that assessment of these parameters requires extensive
practise. Pinto et al. Critical Ultrasound Journal 2013, 5(Suppl 1):S11
http://www.criticalultrasoundjournal.com/content/5/S1/S11
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