目的 比较128排螺旋CT与超声对诊断急性阑尾炎分型的准确性。方法 对南京中医药大学第二附属医院50例128排 CT及超声诊断为急性阑尾炎的病例进行回顾性分析，且与术后的病理进行对照分析，比较两种影像设备对急性阑 尾炎分型诊断的准确性。结果 CT诊断急性阑尾炎的诊断符合率为92％(46/50),其中单纯性阑尾炎有17例，化脓 性阑尾炎有21例，坏疽性（阑尾周围脓肿）8例，CT对急性阑尾炎分型诊断符合率为88.2％（15/17）、85.7％ （18/21）、100％(8/8）。超声诊断急性阑尾炎的诊断符合率为84％(42/50),其中单纯性阑尾炎有16例，化脓性 阑尾炎有19例，坏疽性（阑尾周围脓肿）7例，超声对急性阑尾炎分型诊断符合率为87.5％（14/16）、84.2％ （16/19）、100％(7/7）。结论 CT诊断急性阑尾炎分型的准确率高于超声，但两种检查方法对诊断急性阑尾炎均 有统计学意义（P＜0.05），当超声检查结果阴性时，可以辅以CT检查，两者结合起来，从而诊断急性阑尾炎的准 确率更高。

Objective To compare 128 slice helical CT and ultrasound for the diagnosis of acute appendicitis classification accuracy. Methods There are 50 cases Of 128 slice helical CT and ultrasound diagnosis of acute appendicitis in Jiangsu No.2 Chinese medicine hospital, to Analysis retrospectively, and compared with postoperative pathological contrast analysis, comparing the two imaging equipment to the accuracy of the diagnosis of acute appendicitis types. Results The CT diagnosis of acute appendicitis diagnosis coincidence rate was 92% (46/50), including simple appendicitis in 17 cases, suppurative appendicitis in 21 cases,gangrenous (periappendicural abscess)appendicitis in 8 cases, CT for acute appendicitis classification diagnosis coincidence rate was 88.2% (15/17), 85.7% (18/21), 100% (8/8). The diagnostic accordance rate of ultrasound diagnosis of acute appendicitis was 84%(42/50), including simple appendicitis in 16 cases, suppurative appendicitis in 19 cases, gangrenous (periappendicural abscess) in 7 cases, ultrasonography in diagnosing acute appendicitis parting coincidence rate was 87.5% (14/16), 84.2% (16/19), 100% (7/7). Conclusion CT diagnosis of acute appendicitis classification accuracy is higher than ultrasound, but two checking methods for the diagnosis of acute appendicitis were statistically significant (P < 0.05), when negative results of ultrasound examination can be supplemented by CT examination, both combined, can improve the accuracy rate in diagnosis of acute appendicitis.