探讨胃窗超声造影及增强CT在评估胃癌患者术前T分期中的价值。

收集2014年1月至2016年4月石门县人民医院经胃镜病理确诊的胃癌患者81例，在术前1周分别接受了腹部增强CT及胃窗超声造影检查，分析两种检查方法对肿瘤T分期的评估与术后病理T分期评估的差异。

81例患者中T1期肿瘤7例，T2期14例，T3期41例，T4期19例；增强CT提示T1期肿瘤8例，T2期19例，T3期39例，T4期15例，评估准确性为76.5%；胃窗超声造影检查提示T1期肿瘤8例，T2期21例，T3期39例，T4期13例，评估准确性为80.2%；两种检查方法同时评估时T1期肿瘤5例，T2期16例，T3期36例，T4期24例，评估准确性为84.0%；联合两种检查方法评估肿瘤T分期的准确性高于单一使用增强CT或超声检查（P<0.05）。胃窗超声造影检查评估的T分期与术后病理T分期的一致性高于增强CT（Kappa值：0.685 vs 0.647）。

联合增强CT与胃窗超声造影检查有益于胃癌患者的术前T分期评估，为早期准确诊断胃癌提供有力证据。

To explore the value of enhanced CT and oral contrast-enhanced ultrasonography on preoperative T stage in gastric cancer.

From January 2014 to April 2016, eighty one gastric cancer patients diagnosed by gastroscope underwent abdominal enhanced CT and oral contrast-enhanced ultrasonography 1 week before surgery respectively, to analyze the differences between the two examination methods for evaluation of tumor T staging and postoperative pathological T staging.

Of the 81 patients, stage T1 tumors were found in 7 cases, T2 in 14 cases, T3 in 41 cases, and T4 in 19 cases. Enhanced CT showed 8 cases of stage T1 tumors, 19 of T2, 39 of T3, and 15 of T4; the evaluation accuracy was 76.5%. Gastric window ultrasound contrast examination showed 8 cases of stage T1 tumors, 21 of T2, 39 of T3, and 13 of T4; the evaluation accuracy was 80.2%. The combined two methods were used to evaluate T1 stage tumors in 5 cases, T2 in 16 cases, T3 in 36 cases, and T4 in 24 cases; the evaluation accuracy was 84.0%. The accuracy of combined two methods for evaluating tumor T staging was higher than that of single enhanced CT or ultrasonography (P<0.05). The consistency of predicted T staging and postoperative pathological T staging of gastric window contrast-enhanced ultrasonography was higher than that of contrast-enhanced CT (Kappa: 0.685 vs 0.647).

Combined enhanced CT and oral contrast-enhanced ultrasonography is helpful to evaluate preoperative T staging of gastric cancer patients and to provide strong evidence for early accurate diagnosis of gastric cancer.