进展期胃癌的磁共振影像分析

Diagnostic analysis of MRI in advanced gastric carcinoma

目的:探讨进展期胃癌的磁共振影像特征,并与病理分型进行对比分析。方法:32例患者均经过胃钡餐透视、纤维内窥镜检查,并经手术病理证实为进展期胃癌。磁共振检查使用自旋回波序列、梯度回波序列,并利用脂肪抑制技术、水成像技术及Gd--DTPA增强行多维扫描。结果:磁共振对进展期胃癌的检出率为100%,能进行正确的TNM分期,磁共振诊断与病理分型符合率为90.6%。结论:磁共振检查对进展期胃癌的形态学表现能作出正确的评价,可以清晰显示腹膜后及腹腔内淋巴结的转移情况,并可发现远位器官的转移及相邻器官的受侵清况。对术前分析及愈后的评价有很大的帮助。

Objective To evaluate the feature of MRI on advanced gastric carcinoma,a comparison with MRI and pathological type was studied. Method 32 patients of advanced gastric carcinoma were confirmed by surgical operation and pathology. All patients were examed by barium meal examination of gastro-intestinal tract and endoscopy. SE and FSE sequence suppress fat technique,water imaging and contrast scanning with multiple direction were used by MRI. Results Detectable rate of MRI on advanced gastric carcinoma was 100%, TNM of gastric carcinamo accurate, coincidence rate of MRI-Pathology 90.6%. Conclusion Appearane of advanced gastric carcinoma was evaluated by MRI correctly, peritoneal lymphatic metastasis were displayed clearly, and detected the invasion of organ of distant and adjacency. It is useful for preoperative analysis and postoperation evaluation.