Paediatric Radiology Unit, Cliniques Universitaires Saint-Luc, Avenue Hippocrate 10, Brussels 1200, Belgium.
Pediatr Radiol. 2012 Aug;42(8):941-5. doi: 10.1007/s00247-012-2403-5. Epub 2012 Jun 9.
The diagnosis of intestinal malrotation is based on an upper gastrointestinal contrast series (UGI), which is considered the imaging reference standard. It may however be challenging even for experienced paediatric radiologists.
The purpose of this study was to demonstrate the agreement between UGI and US in assessing the position of the third portion of the duodenum (D3) and to show that a retroperitoneal duodenum indicates normal forgut rotation.
In a prospective study, US assessment of the duodenum and the superior mesenteric vessels was performed in consecutive children who were referred for clinically indicated UGI at a single institution.
Eighty-five children, 5 months to 14 years old, were studied. In 82/85 (96%), both US and UGI suggested normal forgut rotation. In three children, US demonstrated a normal position of the D3 whereas UGI showed an abnormal position of the duodeno-jejunal junction.
US is a non-invasive, easily performed technique for excluding malrotation. UGI may be reserved for situations where US does not demonstrate a normal position of the D3.
肠旋转不良的诊断基于上消化道造影（UGI），其被认为是影像学的参考标准。但即使是有经验的儿科放射科医生，这也可能具有挑战性。
本研究旨在证明 UGI 和 US 在评估十二指肠第三部分（D3）位置方面的一致性，并表明腹膜后十二指肠提示正常的胃旋转。
在一项前瞻性研究中，对在一家机构因临床需要进行 UGI 的连续患儿进行了十二指肠和肠系膜上血管的 US 评估。
85 名 5 个月至 14 岁的患儿参与了本研究。在 82/85（96%）例中，US 和 UGI 均提示正常的胃旋转。在 3 例患儿中，US 显示 D3 位置正常，而 UGI 显示十二指肠空肠连接异常。
US 是一种非侵入性、易于操作的技术，可用于排除旋转不良。对于 US 未显示 D3 正常位置的情况，可以保留 UGI。
