64层螺旋CT增强扫描对胃癌浸润和转移的诊断价值

目的探讨64层螺旋CT增强扫描对胃癌浸润和转移的诊断价值。方法选择2010年10月至2013年2月收治的120例胃癌患者和120例胃炎患者,两组患者均进行64层螺旋CT常规扫描和增强灌注扫描,观察两组患者的预后。结果螺旋CT常规扫描结果显示,肿块周边呈等密度。增强扫描结果显示,病灶动静脉期均呈明显的均匀强化。试验组患者的BF、BV和PS值均显著高于对照组,而MTT值则显著低于对照组,差异均有统计学意义(P<0.05)。CT扫描诊断淋巴结转移的敏感度和特异度分别为96.4%和80.0%。相关性分析结果显示,胃癌淋巴结转移患者的死亡率高(P<0.05)。结论 64层螺旋CT增强扫描对胃癌浸润和转移具有较好的诊断价值,能有效判断预后,从而指导临床治疗。

The diagnostic value of 64-slice spiral enhancement computed tomography for invasion and metasta- sis of gastric cancer

Objective To investigate the diagnostic value of 64-slice spiral enhancement computed tomography （CT） for invasion and metastasis of gastric cancer. Methods 120 patients with gastric cancer and 120 eases patients with gastritis were collected and divided into observation group and control group from October 2010 to February 2013. Patients of both groups were given 64-slice spiral CT enhancement scanning and conventional scanning, respectively. Prognosis of both groups was evaluated. Results Results of con- ventional CT scanning and enhancement CT scanning showed surrounding lumps with equal density and arte- riovenous lesions with homogeneous enhancement, respectively. The values of BF, BV and PS for observa- tion group were significantly higher than those of control group, however, the value of MTY was significantly lower than those of control group （ P 〈 0. 05 ）. The sensitivity and specificity of CT scanning for the diagno- sis of metastatic lymph nodes were 96. 4% and 80. 0% , respectively. Correlation analysis showed that the mortality rate of gastric cancer patients correlated with the invasion and metastasis of lymph nodes （P 〈 0.05 ）. Conclusion 64-slice spiral enhancement CT scanning not only provide better diagnostic value for tumor invasion and metastasis, but also can effectively forecast prognosis and further guide therapy.