超声在胃间叶源性肿瘤诊断中的价值

Value of ultrasonography in the diagnosis of gastric mesenchymal tumors

目的研究分析超声显像在胃间叶源性肿瘤中的诊断及鉴别诊断价值。方法收集2003年1月-2006年3月在我院临床疑似以及超声首次发现的胃间叶源性肿瘤患者共47例,术前做出诊断并与手术病理结果对照,分析这些病例超声诊断的符合率、敏感性、特异性、阳性预测值和阴性预测值,并与胃镜及超声内镜比较。结果47例患者包括胃间叶源性肿瘤40例,胃癌3例,其余胃息肉、胃脂肪瘤、胰腺低分化腺癌、重度慢性浅表胃炎各1例,胃间叶源性肿瘤40例中22例良性,18例恶性。超声诊断符合率为93.6%,敏感性95.0%,特异性85.7%,阳性预测值97.4%,阴性预测值75.0%。结论超声显像在胃间叶源性肿瘤的诊断及鉴别诊断方面具有重要价值,超声与胃镜及超声内镜的联合应用可提高诊断准确性,对临床治疗方案的选择提供重要依据。

Objective To analyze the value of ultrasonography in the diagnosis and differential diagnosis of gastric mesenchymal tumors. Methods Forty-seven patients clinically doubted gastric mesenchymal tumors clinically or the tumors found by ultrasound firstly were studied, then compared with pathologic diagnosis to analyze the coincidence, sensitivity, specificity, positive predictive value and negative predictive value of ultrasound, and the results of ultrasound were also compared with those of gastroscope and ultrasonic endoscope. Results Forty-seven patients included 40 cases of gastric mesenchymal tumors, 3 cases of gastric cancer, 1 case of pancreatic poorly differentiated adenocarcinoma, 1 case of gastric liparomphalus, 1 case of gastric polyp, 1 case of severe chronic superficial gastritis. Forty cases of gastric mesenchymal tumors include 22 patients with low-grade tumors and 18 with high-grade tumors. The coincidence was 93.6%, sensitivity was 95.0%, specificity was 85.7%, positive predictive value was 97.4%, and negative predictive value was 75.0%. Conclusion Ultrasound is valuable in the diagnosis and differential diagnosis of gastric mesenchymal tumors. Using gastroscope and ultrasonic endoscope can improve the diagnosis value of gastric mesenchymal tumors, also provide important proves for choosing treatment programs.