肝血管平滑肌脂肪瘤的MRI与CT影像表现分析

Analysis of MRI and CT Imaging Features of Hepatic Angiomyolipoma

目的分析肝血管平滑肌脂肪瘤的MRI与CT影像表现特征。方法随机选取该院2010年5月—2014年7月期间诊治的60例肝血管平滑肌脂肪瘤患者作为研究对象,给予患者实施MRI与CT影像学检查,分析患者的临床资料,总结影像学检查特点。结果全部60例患者均接受CT检查,肝血管平滑肌脂肪瘤平扫病变表现为低于肝实质密度,内有脂肪密度,边缘比较清楚。增强扫描发现动脉期非脂肪病变强化显著,与同层主动脉密度、血管瘤强化形式相近,内有显著强化的数量不一的条索状影,脂肪成分没有强化,对门静脉期进行增强扫描发现,病变为高密度。MRI影像学特征表现为:T1WI显示病变表现为不均匀高信号,T2WI也显示病变表现为不均匀高信号,利用T1脂肪抑制序列后,高信号转变为不均匀低信号。结论肝血管平滑肌脂肪瘤应用MRI与CT影像检查均会表现出明显的特征,可将MRI与CT影像检查作为肝血管平滑肌脂肪瘤的诊断方式。

Objective To analyze MRI and CT imaging features of hepatic angiomyolipoma. Methods In our hospital from May2012 to July 2014, the diagnosis and treatment of 60 cases of hepatic angiomyolipoma patients as the research object, for patients with MRI and CT imaging examination, analysis of clinical data, summarize the imaging characteristics. Results 60 patients underwent CT scan, and mainly manifested as lesions of low density and medium density lesions, 8 patients were measured CT values, this group of 2 patients in the enhancement is not obvious, the other 12 patients showed obvious enhancement in arterial phase. The implementation of MRI examination in 8 patients, the imaging features were as follows: the T1 WI tumor with high signal, anti phase image focus on signal attenuation, at the same time, the tumor is relatively high signal T2 WI. Conclusion Hepatic angiomyolipoma using MRI and CT imaging can show obvious characteristics, the MRI and CT imaging as a diagnostic method of hepatic angiomyolipoma.