Nine criteria were identified as a useful means of detecting subtle abnormalfties of duodenal position.The normal duodenojejunalfiexure was found to be readily displaceable in neonates and could be pushed to the right of the spine in over two- In the control group, barium was administered orally or via a nasogastric tube in a right lateral position.Upon initial barium accumulation in the bulb and second duodenum, the patient was rolled supine. Posteroanterior camera spot radlographs were obtained rapidly (in Downloaded from www.ajronline.org by 54.202.233.140 on 05/12/18 from IP address 54.202.233.140.
A normal chest radiograph is evidence against the presence of a vascular ring in symptomatic children. Both lateral and frontal radiographs are important in diagnosis.
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