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目的探讨超声双重造影检查(DCUS)在不同部位胃癌术前淋巴结转移评估中的应用价值。方法选择180例胃癌患者,手术前3~5d内均进行DCUS及螺旋CT检查,对不同部位的胃癌患者术前均进行淋巴结分站评估,与术后病理检查结果对照得出正确率,并进行相互间比较。结果 DCUS和螺旋CT检查对远端胃切除患者淋巴结转移判断正确率分别为86.0%和83.9%,对全胃切除患者的判断正确率分别为82.5%和85.0%,两种检查方法判断准确率差异均无统计学意义(P>0.05);DCUS对近端胃切除患者淋巴结转移判断正确率为66.0%,明显低于螺旋CT检查的85.1%,差异有统计学意义(均P<0.05)。结论胃癌术前淋巴结转移评价中,超声双重造影检查判断正确率与螺旋CT相当,仅对贲门胃底部癌判断正确率略低。
Objective To investigate the value of double-contrast ultrasound (DCUS) in the evaluation of preoperative lymph node metastasis of gastric cancer at different sites. Methods 180 cases of gastric cancer patients were selected. DCUS and spiral CT were performed within 3 ~ 5 days before operation. The lymph node sub-stations were evaluated before operation in different parts of gastric cancer patients, and the results were compared with postoperative pathological findings, Compare with each other. Results The accuracy rates of DCUS and spiral CT in diagnosing lymph node metastasis of distal gastrectomy were 86.0% and 83.9%, respectively, and 82.5% and 85.0% respectively in patients undergoing total gastrectomy. There was significant difference in accuracy between the two methods (P> 0.05). The correct rate of DCUS for lymph node metastasis in patients with proximal gastrectomy was 66.0%, which was significantly lower than that of spiral CT (85.1%, both P <0.05). Conclusion In the evaluation of preoperative lymph node metastasis of gastric cancer, the correct rate of double-contrast ultrasonography is comparable to that of spiral CT, and the correct rate is only slightly lower than that of cardiac gastric carcinoma.