超声双重造影对胃癌术前T分期的价值

Diagnostic value of double contrast-enhanced ultrasonography in preoperative staging of gastric cancer

目的评价口服胃窗超声造影联合静脉超声造影（超声双重造影）在胃癌术前T分期中的价值。方法97例行手术治疗的胃癌患者术前行超声双重造影检查和T分期，并与术后病理结果对照。结果口服胃窗超声造影对胃癌术前T分期的准确率为78．4％，其中T1、T2、T3、T4准确率分别为50．0％、75．9％、82．7％、75．0％；双重超声造影T分期准确率达89．7％，其中T1、T2、T3、T4准确率分别为75．0％、86．2％、94．2％、83．3％；两者T分期准确率的差异有统计学意义（X^2=4．646，P〈0．05）。结论超声双重造影对胃癌术前分期具有较高的临床应用价值。

Objective To evaluate the preoperative T staging of gastric cancer using oral and intravenous contrast-enhanced gastric ultrasonography-the double contrast-enhanced ultrasonography （DCUS）. Methods Ninety seven patients with gastric cancer proved by endoscopic biopsy who underwent preoperative DCUS examination were enrolled in this study,and the results were compared with postoperative pathologic findings. Results The accuracy of oral contrast-enhanced ultrasonography and DCUS in determining the T stage of gastric cancer were 78.4%（T1 50.0%,T2 75.9%,T3 82.7%,T4 75.0%） and 89.7%（T1 75.0%,T2 86.2%,T3 94.2% ,T4 83.3%）, respectively, and the difference between two methods was statistically significant （X^2=4.646, P〈0.05）. Conclusions DCUS is a useful diagnostic method for preoperative staging of gastric cancer.