目的 探讨肝脏Ⅳ病变肿瘤的 MRI影像学特征及诊断价值研究。方法 回顾性地分析我院2010年1月-2015年12 月期间接收的35例经手术病理证实患有 肝脏IV病变肿瘤患者的MRI检查资料， 针对性分析MRI增强扫描对肝脏IV病变 肿瘤的MRI影像学的特征及诊断价值。 结果 35例患者中检出肝脏IV病变肿瘤 患者32例，检出率达到91.4%。MRI平扫 时，T1WI呈低信号T2WI呈高信号，边界 清楚，信号均匀，动态增强可见肝脏Ⅳ 段病灶从边缘开始强化，逐渐向中心填 充，强化程度类似于血管，冠状位及轴 位最终可见肝脏Ⅳ段病灶基本被造影剂 填充完全，仅仅有少许纤维疤痕。结论 MRI增强扫描在肝脏IV病变肿瘤的的诊断 过程中，能够较为准确诊断，有助于早 期的外科干预，因此MRI增强扫描可作为 肝脏IV病变肿瘤诊断的首选检查方法,在 临床上结合其他影像学手段对患者进行 有效救治。

Objective Study the MRI imaging features of liver tumor Ⅳ lesions and diagnosis value of research. Methods Retrospective analysis of our hospital from January 2010 to December 2014 received during the period of 35 cases confirmed by surgery pathology of patients with liver lesions IV tumours MRI data, targeted analysis of MRI enhancement scanning of the liver lesions IV tumor MRI imaging features and diagnostic value. Results I 35 patients were detected in the liver lesions IV tumors, 32 cases, the detection rate of 91.4%, MRI scan, T1WI and T2WI low signal high signal, border and clear, uniform signal, dynamic enhancement liver Ⅳ segment lesions from the edge to strengthen, gradually fill to the center, strengthen the extent similar to the blood vessels, coronary position and shaft end liver Ⅳ basic segment lesions was filled completely, there is only a few fibrous scar. Conclusion Enhanced MRI in liver pathological changes in the process of the diagnosis of tumors, IV can more accurate diagnosis, is helpful to early surgical intervention, therefore enhanced MRI can be used as the first choice for the liver cancer diagnosis IV method, effectively for the patients combined with other imaging methods in clinic treatment.