多层螺旋CT后处理及变窗技术分析胃肠道急腹症患者临床特征  

Analysis of Clinical Characteristics in Patients with Gastrointestinal Acute Abdomen by Post-processing of Multi-slice Spiral CT and Variable Window Technique

作　　者：毛德茂 秦俭[1] 修志刚[1] 罗艺 MAO De-mao;QIN Jian;XIU Zhi-gang;LUO Yi(Department of Radiology,The First People's Hospital of Longquanyi District,Chengdu 610100,Sichuan Province,China)

机构地区：[1]成都市龙泉驿区第一人民医院放射科,四川成都610100

出　　处：《中国CT和MRI杂志》2021年第3期123-126,共4页Chinese Journal of CT and MRI

摘　　要：目的探究应用多层螺旋CT后处理及变窗技术分析胃肠道急腹症患者的临床特征。方法选取2017年7月至2019年9月龙泉驿区第一人民医院诊治的112例胃肠道急腹症患者进行研究。患者均进行CT检查,通过多平面重组(MPR)、曲面重组(CPR)及不同窗宽窗位技术(肝窗、腹窗、宽窗、脂肪窗)观察CT图像,分析原发病变段管壁水肿增厚、游离气体在多窗下显示率差异。结果穿孔发生位置以胃最多[46.43%(52/112)],小肠最低[5.36%(6/112)]。阑尾、结肠、直肠穿孔部位的原发病变段管壁水肿增厚及直肠、阑尾区的气腹征以腹窗最好,胃、十二指肠、小肠、阑尾、结肠、直肠分别在肝窗、腹窗、脂肪窗中显示比较,差异具有统计学意义(P<0.05)。膈下的气腹征以宽窗最好,肝门、肝纵裂、胆囊窝以肝窗最好,肝肾隐窝、网膜囊、前腹壁(脐旁)、肠系膜内以脂肪窗最好,游离气体在肝窗、腹窗、宽窗、脂肪窗中显示比较,差异具有统计学意义(P<0.05)。结论胃肠道急腹症患者采用多层螺旋CT后处理及变窗技术分析,有利于及早进行准确诊断。Objective To explore the clinical characteristics in patients with acute gastrointestinal abdomen by multi-slice CT post-processing and va riable window technique.Methods From July 2017 to September2019,112 patients with acute gastrointestinal abdomen diagnosed and treated in The First People’s Hospital of Longquanyi District were selected.All the patients underwent CT examination.The CT images were observed by multiple plane recombination(MPR),curved recombination(CPR),and the different window width and window position techniques(liver window,abdominal window,wide window and fat window),and the differences in the display rate of free gas in the primary lesion segment with edema and thickening were analyzed under multiple Windows.Results The location of perforation was 46.43%(52/112) in stomach and 5.36%(6/112) in small intestine.The abdominal window was the best in the edema and thickening of the primary lesion of appendix,colon and rectum perforation,and the stomach,duodenum,small intestine,appendix,colon and rectum were respectively displayed in liver window,abdominal window and fat window,and the difference were statistically significant(P<0.05).The results showed that the wide window was the best for the subphrenic pneumoperitoneum sign,the liver window was the best for the porta hepatis,hepatic longitudinal fissu re and gallbladder fossa,the fat window was the best for the liver and kidney crypt,the fat window was the best for the liver and kidney crypt,the omental sac,the anterior abdominal wall(near the umbilicus) and mesentery,and the abdominal window were the best for the rectum and appendix.The difference of free gas in the liver window,abdominal window,wide window and fat window was statistically significant(P<0.05).Conclusion The quantitative analysis of patients with gastrointestinal acute abdomen patients via multi-slice spiral CT post-processing and va riable window technique is conducive to an ea rly and accurate diagnosis.

关 键 词：多层螺旋CT 后处理 变窗技术 胃肠道急腹症 临床特征 

分 类 号：R445.3[医药卫生—影像医学与核医学] R656.1[医药卫生—诊断学]