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目的 探讨胃癌的螺旋CT强化特征 ,评价口服水螺旋CT三期增强扫描对胃癌分期及大体分型的诊断价值。方法 对 44例进展期胃癌患者实施胃气钡双对比造影及口服水螺旋CT三期增强扫描 ,并与术后病理对照。结果 ① 44例胃癌中 ,32例以门静脉期强化程度为著 ,与动脉期比较有显著性差异 (t =4.2 2 6 ,P <0 .0 5 )。②钡餐造影及螺旋CT对胃癌分型总的准确率分别为 75 .0 %和 86 .5 %。③螺旋CT三期增强扫描对胃癌TNM分期的准确性为 81.8%。结论 螺旋CT对胃癌大体分型的准确性优于钡餐造影 ,对胃癌术前TNM分期的准确性明显优于普通CT。
Objective To investigate the characteristics of spiral CT enhancement in gastric cancer and evaluate the diagnostic value of three-phase enhanced spiral CT in the diagnosis of gastric cancer staging and general classification. Methods 44 patients with advanced gastric cancer were treated with double-contrast gastritis and oral enhanced spiral CT, and compared with postoperative pathology. Results In 44 cases of gastric cancer, 32 cases had enhancement of portal venous phase, which was significantly different from the arterial phase (t =4.226, P < 0.05). 2 The accuracy of barium meal and spiral CT in the classification of gastric cancer were 75.0 % and 86.5% respectively. 3 The accuracy of three-phase spiral CT in the evaluation of gastric cancer TNM staging was 81.8%. Conclusion The accuracy of spiral CT in the classification of gastric cancer is better than that of barium meal. The accuracy of preoperative TNM staging of gastric cancer is significantly better than that of ordinary CT.