摘要
笔者分析了经0.15T 低场 MRI 检查诊断、并经手术、病理或随访证实的原发性肝细胞癌(PHC)患者50例.发现 PHC 多见于肝右叶(占70%),多呈类圆形或不规则形(占64%).癌区信号:T_1加权像主要呈偏低信号(占74%),T_2加权像多呈混杂高信号(占86%),癌区内、外及肝内血管异常是常见的表现,其他征象有肿瘤假性包膜、瘤内间隔、瘤栓、肝硬化以及转移灶等.一般易与肝转移癌、海绵状血管瘤、肝囊肿鉴别.所以低场 MRI 对 PHC 诊断是有价值的.但对小肝癌有一定限度,应结合其他检查慎重作出诊断.
0.15T low field MRI was performed in 50 patients with primary hepato- cellular carcinoma(PHC)confirmed by laboratory test and pathological evidence.Most of le- sions on MRI were located in right lobe(70%).The shape of the foci appeared roundlike or irregular(64%).They had slightly low—intensity(74%)on T_1 WI,and most of them ap- peared mixed high—intensity(86%)on T_2WI.Abnormal vascular structure was a common findings in foci or perifoci.Other MRI findings included pseudocapsule,septums in tumor, tumor embolism,hepatic cirrhosis and metastasis.In general,it was easy to differentiate from metastasis of liver,cavernous hemangioma of liver,simple hepatic cyst.The authors believed that low field MRI was useful for the diagnosis of PHC.But it was so limited for small PHC in low field MRI,the diagnosis should be made combining with other examina- tion.
出处
《影像诊断与介入放射学》
1992年第1期20-23,86,共5页
Diagnostic Imaging & Interventional Radiology
关键词
肝肿瘤
肝细胞瘤
磁共振成像
Hepatic tumor
Hepatoma
Magnetic resonance imaging
