16层螺旋CT对急性阑尾炎的诊断价值

Value of 16-slice Spiral CT in Diagnosis of Acute Appendicitis

目的研究16层螺旋CT对急性阑尾炎的诊断价值。方法对经临床确诊的58例急性阑尾炎的CT表现进行回顾性分析,行最大密度投影(MIP)、曲面重建(CPR)后处理技术对阑尾大小、形态及盲肠周围改变进行观察分析。结果58例中有56例多层螺旋CT诊断正确。其中急性阑尾炎24例(42.86%),急性阑尾炎并阑尾周围炎25例(44.64%),阑尾脓肿6例(10.71%),炎性肿块1例(1.79%)。直接征象为阑尾增粗增大(直径6mm)、阑尾结石,间接征象包括阑尾周围炎、阑尾周围脓肿或炎性肿块、盲肠末端肠壁增厚和局部淋巴结肿大等。结论16层螺旋CT检查能快速、准确地诊断急性阑尾炎,并能发现除阑尾炎以外的各种病变。

[Objective] To study the diagnostic value of 16-slice spiral CT for acute appendicitis.[Methods] The CT findings of acute appendicitis, proved by clinical operation, were retrospectively analyzed with technology of maximum intensity projection （MIP） and curve intensity projection（CPR）. The size, shape, and changes in periappendiceal fat were observed.[Results]Of 58 cases, 56 cases were accurately diagnosed： acute appendicitis in 24 cases （42.86%）, acute appendicitis with periappendicitis in 25（44.64%）, appendiceal abscess in 6（10.71%）, and inflammatory mass in 1（1.79%）. The direct features of acute appendicitis included enlarged appendix （diameter of 6 mm） and appendicular lithiasis; indirect features included periappendicitis, appendiceal abscess, inflammatory mass, thickened wall of bottom of caecum and regional glandular enlargement.[Conclusion]The examination of 16-slice spiral CT can diagnose acute appendicitis rapidly and accurately, and find out other pathological changes except appendicitis.