Application Value of Different Post-processing Techniques of MSCT in Diagnosis of Intra-abdominal Hernia
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摘要: 目的：探讨多层螺旋CT（MSCT）的不同组合后处理技术在腹内疝（IAH）诊断中的应用价值。方法：回顾性分析手术证实的63例行腹部增强扫描IAH患者，其中22例为腹内疝伴绞窄性肠梗阻，41例为腹内疝伴非绞窄性肠梗阻，将不同后处理技术进行组合：多平面重组（MPR）+最大密度投影（MIP）组；MPR+曲面重组（CPR）组，根据咖啡豆征/假肿瘤征、鸟嘴征、肠系膜漩涡征/缆绳征、同心圆征等征象，对IAH的定位、定性作出判断，分析结果。结果：十二指肠旁疝3例、Winslow孔疝1例、盲肠周围疝2例、肠粘连束带型腹内疝57例，MPR+MIP组准确率（80.95％），MPR+CPR组准确率（76.19％），两组在IAH类型诊断中无统计学差异（P>0.05）；在显示漩涡征/缆绳征及同心圆征结果中，MPR+MIP组（58.73％和26.98％）均高于MPR+CPR组（49.21％和12.70％），两组具有统计学差异（P<0.05）。结论：在MPR+MIP组合后处理技术能很好地对IAH作出诊断，因而可在IAH影像诊断中加以推广。Abstract: Objective: To evaluate the application value of multi-slice spiral CT (MSCT) in the diagnosis of internal abdominal hernia (IAH) with different combined post-processing techniques. Method: A retrospective analysis of 63 cases of intra-abdominal hernia with abdominal enhanced scanning, confirmed by the operation, of which 22 were intra-abdominal hernia with strangulated intestinal obstruction, 41 were intra-abdominal hernia with non-strangulated intestinal obstruction, and different post-processing techniques were combined. Results: Multiplanar reconstruction (MPR) +maximum intensity projection (MIP) group and Multiplanar reconstruction (MPR) +curved planar reformation (CPR) group. According to the signs of coffee bean sign/pseudotumor sign, bird's mouth sign, mesenteric whirlpool sign/cable sign, concentric circle sign and so on, making a judgment about the localization and qualitative analysis of abdominal internal hernia and the results were analyzed. Conclusion: 3 cases of parduodenal hernia, 1 case of Winslow's foramen hernia, 2 cases of pericecal hernia, and 57 cases of intra-abdominal hernia of intestinal adhesive band. The accuracy rate of MPR+MIP group and MPR+CPR group are 80.95% and 76.19%, respectly. There was no statistical difference between the two groups in the diagnosis of intra-abdominal hernia (P>0.05).The results of whirlpool sign/cable sign and concentric circle sign were higher in MPR+MIP group (58.73%, 26.98%) than that in MPR+CPR group (49.21%, 12.70%). There was significant difference between the two groups (P<0.05). Conclusion: The combined post-processing technique of MPR+MIP can make a diagnosis of IAH better, so it can be widely expanded in the imaging diagnosis of intra-abdominal hernia.
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期刊类型引用(7)
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