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目的 复习新生儿坏死性小肠结肠炎(NEC)的影像学表现,并探讨腹部DR后处理技术在NEC定性诊断中的意义.方法 回顾性分析我院新生儿科、小儿外科住院患儿41例有完整资料的NEC的影像学表现.结果 DR后处理技术应用前:局限性肠壁积气11例,广泛性肠壁积气30例;单纯粘膜下积气8例,合并桨膜下或肌层积气33例,此33例中2例还合并肝门静脉积气.DR后处理技术应用后:余下的合并桨膜下或肌层积气的31例通过调整窗宽窗位、边缘增强及肝区图像放大后,14例又发现了肝门静脉积气.结论 肝门静脉积气征象对NEC的诊断具有特异性,利用腹部DR后处理技术能明显提升肝门静脉积气的检出率,DR后处理技术在新生儿坏死性小肠结肠炎定性诊断中具有重要的意义.“,”Objective To review the imaging findings of neonatal necrotizing enterocolitis (NEC) and explore the significance of abdominal DR post-processing technique in qualitative diagnosis of NEC.Methods Retrospective analysis was done on 41 cases of pediatric and pediatric surgical hospitalized children with complete information of NEC imaging.Results Before the application of DR post-processing technique,there were 11 cases of localized intestinal wall pneumatosis and 30 cases of generalized intestinal wall pneumatosis.8 cases were pneumatosis under pure submucosa,33 cases were pneumatosis in combined oar membrance or muscular layer,among which 2 cases were combined with hepatic vein.Mter the application of DR post-processing technique,14cases of Hepatic portal vein accumulation are found in the rest of 31 cases of pneumatosis in combined oar membrance or muscular layer by adjusting the width of window edge enhancement and liver area after image magnification.Conclusion Hepatic vein pneumatosis signs are specific to the diagnosis of NEC,using abdominal DR post-processing technique can significantly improve prevalence of hepatic vein pneumatosis,DR post-processing technique has vital significance in the qualitative diagnosis of neonatal necrotizing enterocolitis.