低张饮水MRCP结合LAVA动态增强扫描对十二指肠肿瘤的诊断价值  

Diagnostic Value of Hypotonic--MRCP Combined with LAVA Dynamic Contrast--Enhanced Scan in Duodenal Tumor

作　　者：尹涛[1] 宦怡[1] 齐顺[1] 袁远[1] 贺晶[2] 

机构地区：[1]第四军医大学西京医院放射科,陕西西安710032 [2]第四军医大学卫生处

出　　处：《实用放射学杂志》2010年第4期504-506,共3页Journal of Practical Radiology

摘　　要：目的探讨低张饮水MRCP结合LAVA动态增强扫描在十二指肠肿瘤诊断中的价值。方法收集资料齐全的十二指肠肿瘤患者5例，该组患者均曾在常规MR扫描基础上行低张饮水MRCP及LAVA动态增强扫描，观察病变的直接及间接征象。结果本组5例均经病理证实为十二指肠腺癌，其中正确诊断4例，共同的征象为十二指肠降部管腔呈偏心不对称狭窄，可见不规则软组织信号以宽基底与肠壁相连，相邻肠壁僵直，肠黏膜破坏；LAVA动态增强扫描肿瘤呈轻、中度持续强化。结论低张饮水MRCP结合LAVA动态增强扫描能够全面、直观显示十二指肠肿瘤的直接及间接征象，在明确肿瘤性病变的范围及周围组织浸润方面具有重要意义。Objective To discuss the value of hypotonic--MRCP combined with LAVA dynamic contrast--enhanced scan in diagnosis of duodenal tumor. Methods Five patients with duodenal adenocarcinomas confirmed by pathology were involved in this study. All cases underwent plain MRI and hypotonic--MRCP and LAVA dynamic contrast--enhanced scans. Results 4 of 5 cases were correctly diagnosed with MR imaging. Imaging signs included：the cavum of descending duodenum appeared as asymmetrical stenosis, masses with soft tissue signal intensity connecting the intestinal wall with wide base, the intestinal wall stiff, the intestinal mucosa destruction. The lesions would be slightly-- moderately enhanced at LAVA dynamic enhancement scanning. Conclusion Hypotonic-- MRCP combined with LAVA dynamic contrast--enhanced scan can display the direct and indirect sign of duodenal tumors, which was effective in identifying the circumscription of the tumor and its extension.

关 键 词：腹部 磁共振胰胆管成像 动态增强扫描 十二指肠肿瘤 

分 类 号：R735.31[医药卫生—肿瘤] R445.2[医药卫生—临床医学]