多层螺旋CT辅助术中判断胃癌浆膜侵犯的价值

目的探讨多层螺旋CT辅助术中判断胃癌浆膜侵犯的价值。方法回顾性分析2009年8月至2011年6月间中国医科大学附属第一医院收治的206例胃癌患者的临床资料。将术前CT和术中判断胃癌浆膜侵犯情况与术后病理对照．以比较术前CT与术中判断胃癌浆膜侵犯的诊断价值。结果术前CT和术中判断胃癌浆膜侵犯的敏感性分别为88．5％和98．9％，特异性分别为81．5％和61．3％．CT判断浆膜侵犯的准确率高于术中判断．但差异未达到统计学意义（84．5％比77．2％，P=0．060）。术中判断胃癌浆膜面为正常型、反应型、结节型、腱状型和多彩弥漫型者浆膜侵犯率分别为0（0／29）、2．5％（1／40）、40．5％（15／37）、59．2％（29／49）和82．4％（42／51）。对于浆膜呈腱状型表现者，术中判断胃癌浆膜侵犯的准确率为61．2％．明显低于术前CT的87．8％（P=0．002）。结论术前CT检查能够辅助术中判断胃癌浆膜有无侵犯．对浆膜呈腱状型的胃癌．手术医生应重视术前CT诊断。

Value of multidetector CT on aiding intraoperative judgement of serosal invasion of gastric cancer

Objective To explore the value of muhidetector CT on aiding intraoperative judgement of serosal invasion of gastric cancer. Methods Clinical data of 206 cases of gastric cancer undergoing radical surgery in the First Hosptial of China Medical University from August 2009 to June 2011 were analyzed retrospectively. Preoperative CT findings and intraoperative judgement of serosal invasion in gastric cancer were compared with pathological results in order to investigate their values. Results The sensitivity and specificity of preoperative CT findings and intraoperative judgement of serosal invasion were 88.5%, 81.5% and 98.9%, 61.3%, respectively. The accuracy of preoperative CT in diagnosing serosal invasion was higher than that of intraoperative judgement, while the difference was not statistically significant （84.5% vs. 77.2%, P=0.060）. The rates of serosal invasion of normal type, reactive type, nodular type, tendonoid type and color-diffused type were 0 （0/29）, 2.5%（1/40）, 40.5% （15/37）, 59.2% （29/49）, and 82.4% （42/51） respectively. The accuracy of preoperative CT in diagnosing serosal invasion of gastric cancer with tendonoid type was higher than that of intraoperative judgement, and the difference was statistically significant （61.2% vs. 87.8% ,P=0.002）. Conclusions Multidetector CT plays an important role in aiding intraoperation judgement of serosal invasion of gastric cancer. For gastric cancer with tendonoid and color-diffused macroscopic serosal appearance, surgeons should pay attention to the value of preoperative CT findings.