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64排螺旋CT对急性阑尾炎的诊断价值 被引量:12

The value of 64-slice spiral CT in diagnosis of acute appendicitis
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摘要 目的探讨64排螺旋CT及重建功能在急性阑尾炎中的诊断价值。方法收集我院住院非阑尾炎患者51例,作为对照组,统计CT对正常阑尾显示率和测量阑尾外直径。收集同期住院手术并经病理诊断急性阑尾炎病例36例,作为实验组,统计患者阑尾外直径和CT诊断阑尾炎的准确率,两组病例测量数值进行统计学处理;观察、总结急性阑尾炎CT影像特征。结果 64排螺旋CT对正常阑尾显示率为98.0%,对急性阑尾炎诊断准确率为96.6%;正常阑尾外直径为(7.7±1.8)mm,急性阑尾炎患者阑尾外直径为(11.1±3.4)mm,两样本均数差别有高度显著性(T=3.67,P<0.01);在急性阑尾炎时,阑尾外直径明显增粗,阑尾本身结构模糊,周围脂肪间隙密度增高,可形成渗出和包块;重建技术能够多方位显示阑尾,并能清晰显示阑尾与周围组织、器官的相关信息。结论 64排螺旋CT可快速准确显示急性阑尾炎及其并发症,对于一些危重的急腹症患者、尤其是怀疑急性阑尾炎患者应首选进行CT扫描。 Objective To investigate the value of 64 row spiral CT and reconstruction in the diagnosis of acute appendici- tis, Methods 51 cases of non-appendicitis in the hospital were collected as a control group, the display rate of CT for the normal appendix was statically analyzed and outer diameter of appendix was measured. Correspondingly, 36 cases of acute appendicitis confirmed by the pathology appendicitis after surgery in hospital during this period were collected as the exper- imental group. The outside diameter of appendix and accuracy of CT in the diagnosis of appendicitis were statically ana- lyzed. Then, the data of two groups were statically analyzed and the CT imaging characteristics of acute appendicitis were observed and summarized in this work. Results The display rate of 64 row helical CT for the normal appendix was 98%, the accuracy rate for the diagnosis of acute appendicitis was 96.6%. Outside the normal outside diameter of appendix was (7, 7±1.8) mm, while, the outside diameter of appendix in patients with acute appendicitis was (11.1±3.4) mm, with significantly difference between the two groups ( T =3.67, P 〈0.01) ; In acute appendicitis, the outside diameter of ap- pendix was obviously enlarged. The structure of appendix itself was fuzzy the density of surroundings fat gap was higher, which fat gap around can form exudation and enclosed mass. Reconstruction technique can display the all-round appendix, and can display the relevant information on appendix with the surrounding tissues and organs. Conclusion 64 row spiral CT can accurately show the acute appendicitis and its complications. For some of the critically ill patients with acute ab- dominal pain, especially in patients with suspected acute appendicitis, CT scans should be the first choice.
出处 《医学影像学杂志》 2015年第6期1048-1051,共4页 Journal of Medical Imaging
关键词 急性阑尾炎 体层摄影术 X线计算机 多平面重建 Acute appendicitis Tomography, X-ray computed Multi-planar reconstruction
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