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目的:探讨重症急性胰腺炎合并感染应用CT扫描诊断准确率。方法:对2011年7月至2014年3月收治的35例确诊重症急性胰腺炎疑似合并感染患者实施螺旋CT扫描,并抽取积液标本实施细菌培养确认感染率,分析CT扫描准确率以及影像学结果,并与单纯性SAP实施CT扫描影像学表现做对比,总结合并感染病例典型CT表现。结果:细菌培养感染率为88.57%,CT扫描诊断感染率为85.71%,两者比较差异无统计学意义(χ2=1.010,P=0.241);CT胰腺肿大突出,周围渗出大量棉絮状物质,且渗出物聚集,炎症蔓延范围大,增强CT图像提示胰腺坏死区呈现无强化或弱强化低密度影,假性气泡及不均匀积液密度是SAP合并感染的典型表现。结论:CT扫描应用于急性重症胰腺炎合并感染患者诊断准确率高,可作为重要诊断手段。
Objective: To investigate the diagnostic accuracy of CT scanning in patients with severe acute pancreatitis complicated with infection. Methods: Thirty-five patients with confirmed suspected severe acute pancreatitis who had been diagnosed with severe acute pancreatitis from July 2011 to March 2014 underwent helical CT scan, and the effusion samples were collected to confirm the infection rate of bacterial culture. The accuracy of CT scan and imaging Results, and compared with simple SAP implementation CT scan imaging performance, combined with the typical CT manifestations of infection cases. Results: The infection rate of bacterial culture was 88.57%, the diagnostic rate of CT scan was 85.71%, there was no significant difference between the two (χ2 = 1.010, P = 0.241) , And exudate accumulation, the spread of inflammation, enhanced CT images suggest no necrosis of the pancreas showed no enhancement or weak enhancement of low density, false bubble and uneven fluid density is a typical manifestation of SAP infection. Conclusion: CT scan can be used as an important diagnostic tool in the diagnosis of acute severe pancreatitis complicated with infection.