通过对47例胃癌患者术前超声与术后病理分期的对比研究,结果表明超声对胃癌分期准确率为72.3％。其中对Ⅳ期胃癌诊断准确率为89.4％,灵敏度71.4％,特异度97.0％,提示超声对胃癌术前分期,特别是对Ⅳ期胃癌的检出,有重要的临床实用价值。 Through the comparative study of preoperative ultrasound and postoperative pathological staging of 47 patients with gastric cancer, the results showed that the accuracy of ultrasound for gastric cancer staging was 72.3%. Among them, the accuracy of diagnosis of stage IV gastric cancer was 89.4%, sensitivity was 71.4%, and specificity was 97.0%. This suggests that ultrasound has important clinical and practical value for the preoperative staging of gastric cancer, especially for the detection of stage IV gastric cancer.