Saverino Benjamin P, Lava Charlene, Lowe Lisa H, Rivard Douglas C
University of Missouri Kansas City School of Medicine, Kansas City, MO 64108-2792, USA.
Pediatr Emerg Care. 2010 Apr;26(4):281-4. doi: 10.1097/pec.0b013e3181d6daac.
Several previous studies have evaluated the usefulness of plain abdominal radiographs for the diagnosis of pediatric intussusception, although investigation of the most specific clues to diagnose intussusception has not been studied alone. The 3 most specific findings of intussusception include intraluminal mass or intussusceptum, nonvisualized air-filled cecum, and obscured liver margin or right upper-quadrant mass. In this study, a retrospective review of 73 known cases of intussusception with age- and sex-matched controls was performed. The cases were reviewed by 2 blinded, board-certified pediatric radiologists to aid in the determination of sensitivity and specificity. The sensitivity and specificity of plain radiographs to correctly diagnose ileocolic intussusception in pediatric patients compared with a control population were 77% and 97%, using a 50% or greater receiver operating characteristic curve cutoff.
先前已有多项研究评估了腹部平片对小儿肠套叠诊断的有用性，不过尚未单独研究诊断肠套叠最具特异性线索。肠套叠最具特异性的3项表现包括腔内肿块或套入部、未显影的充气盲肠以及肝脏边缘模糊或右上腹肿块。本研究对73例已知肠套叠病例及年龄和性别匹配的对照进行了回顾性分析。由2名经过双盲、具备专业委员会认证的儿科放射科医生对病例进行评估，以确定敏感性和特异性。与对照人群相比，腹部平片正确诊断小儿回结肠型肠套叠的敏感性和特异性分别为77%和97%，采用的受试者操作特征曲线截断值为50%或更高。
