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目的 :探讨内镜超声检查 (EUS)在术前判断胃癌浸润深度、淋巴结状况和可切除性中的临床应用价值。方法 :对经胃镜活检证实的胃癌 12 4例术前行内镜超声检查 ,并与术后病理检查结果对照。结果 :EUS对胃癌 T分期 (浸润深度 )的判断准确率为 82 .4 % ,其中 T1 期为 86 .2 % ,T2 期为 72 .7% ,T3期为 88.9% ,T4 期为 73.9% ,其中 EUS鉴别粘膜和粘膜下癌的准确率为 6 5 .5 %。EUS对胃癌淋巴结状况的判断准确率、淋巴结转移的敏感性和特异性分别为 82 .1%、76 .3%和 89.4 %。EUS判断胃癌可切除性的敏感性和特异性分别为 98.1%和 77.8%。结论 :内镜超声检查对胃癌浸润深度、淋巴结状况和可切除性的术前评估具有较高的临床应用价值。
Objective: To investigate the clinical value of endoscopic ultrasonography (EUS) in determining the depth of invasion, lymph node status and resectability of gastric cancer before operation. Methods: 12 4 cases of gastric cancer confirmed by gastroscope biopsy were performed endoscopic ultrasonography preoperatively and compared with postoperative pathological findings. Results: The diagnostic accuracy of EUS for T stage (depth of invasion) of gastric cancer was 82.4%, of which T1 was 86.2%, T2 was 72.7%, T3 was 88.9%, T4 was 73.9% The accuracy of EUS in distinguishing mucosa and submucosal carcinoma was 65.5%. The accuracy and specificity of EUS in diagnosing lymph node status of gastric cancer were 82.1%, 76.3% and 89.4% respectively. The sensitivity and specificity of EUS in assessing gastric resectability were 98.1% and 77.8%, respectively. Conclusion: The value of endoscopic ultrasonography in preoperative evaluation of gastric cancer invasion depth, lymph node status and resectability has high clinical value.