人工气腹法螺旋CT对胃癌分期的评价

Induced pneumoperitoneum in spiral CT evaluation of gastric cancer

目的 评价人工气腹法螺旋CT(SCTPP)对胃癌术前分期的诊断价值及临床意义。方法对 5 2例体瘦胃癌病人先后进行常规SCT和SCTPP检查 ,并与手术病理进行对照。结果 常规SCT和SCTPP对T分期的准确性分别为 72 %和 96 % (χ2 =8.0 ,P <0 0 0 5 ) ,对N分期的准确性分别为 85 %和93% (χ2 =0 .0 0 6 ,P >0 0 5 ) ,对M分期的敏感性分别为 6 1%和 10 0 % (χ2 =0 .0 4,P <0 0 5 ) ,对TNM分期的准确性分别为 81%和 96 % (χ2 =6 .0 3,P <0 0 5 )。结论 SCTPP对胃癌术前分期的准确性明显高于常规SCT ,对胃癌选择治疗方案具有重要的指导意义。

Objective To evaluate the diagnostic value and clinical significance of preoperative staging in gastric cancer with induced pneumoperitoneum in spiral CT (SCTPP). Methods Both routine SCT and SCTPP were performed in 52 lean patients suffered from gastric cancers, and comparison was made between SCT findings and surgical and histopathologic findings. Results The accuracy of routine SCT and SCTPP in determining the T-staging was 72% and 96%, respectively (χ2=8.0, P<0.005). The accuracy in determining N-staging was 85% and 93%, respectively (χ2=0.006, P>0.05). The sensitivity in determining M-staging was 61% and 100%, respectively (χ2=0.04, P<0.05). The accuracy in determining TNM staging was 81% and 96%, respectively (χ2=6.03, P<0.05). Conclusion The accuracy of SCTPP in determining preoperative staging of gastric cancer was significantly higher than that of routine SCT. SCTPP has important guiding significance for the selection of the treatment strategy in gastric cancer.