论文部分内容阅读
目的探讨螺旋CT增强扫描在胃癌淋巴结多发转移中的影像特征和诊断价值。方法选取2014年6月至2016年6月间辽宁省朝阳市中心医院收治的50例胃癌患者,采用多排螺旋CT(MSCT)平扫后再行增强双期扫描,以术前CT检查和病理结果作为对照,进行对比分析。结果多层螺旋CT增强扫描诊断胃癌淋巴结转移的特异度为90.0%,敏感度为68.0%,多层螺旋CT诊断符合率为86.0%。多层螺旋CT平扫和增强扫描诊断结果相同者26例,其中CT平扫漏诊10例,误诊4例。多层螺旋CT增强扫描淋巴结转移符合率高于多层螺旋CT平扫,差异有统计学意义(P<0.05)。结论增强扫描和CT平扫组合能够清晰显示胃癌转移淋巴结形态、大小,提高检出胃癌类型和阶段的诊断率,值得推广。
Objective To investigate the imaging features and diagnostic value of enhanced spiral CT in lymph node metastasis of gastric cancer. Methods Fifty patients with gastric cancer admitted to Chaoyang Central Hospital from June 2014 to June 2016 were enrolled in this study. MSCT was used to scan two-phase images before and after CT scan. Preoperative CT and pathology Results as a control, comparative analysis. Results The specificity of MSCT in diagnosing gastric cancer lymph node metastasis was 90.0%, the sensitivity was 68.0%, and the coincidence rate of multi-slice spiral CT was 86.0%. Multi-slice spiral CT and enhanced scan of the same diagnosis of 26 cases, including CT scan misdiagnosis in 10 cases, misdiagnosis in 4 cases. The coincidence rate of multi-slice spiral CT enhanced lymph node metastasis was higher than that of multi-slice spiral CT, the difference was statistically significant (P <0.05). Conclusion The combination of enhanced CT scan and CT scan can clearly show the shape and size of lymph node metastasis and improve the diagnosis rate of gastric cancer type and stage, which is worthy of popularization.