摘要
本文对４２例肝转移瘤和１２例原发结节型肝癌的ＭＲＩ形态特征进行了影像学分析，结果发现：有近４５％肝转移瘤在Ｔ＿１－Ｔ＿２加权像上均呈低信号改变，部分病例在此基础上出现环征、牛眼征和壁小结征。瘤灶很小时即出现靶征且很少发生融合现象。认为这些为肝转移瘤的特征性表现，对其可能的病理基础及与原发结节型肝癌的鉴别也进行了探讨。
MRI morphologic characteristics in forty-two hepatic metastases and twelve primary nodular hepatoma were analyzed.The results revealed that forty five percent of the metas-tases exhibited low intensity on both T_1 and T_2 in weighted images.On this basis,ring,bull eye and mural nodule signs were present in some cases。Target signs could be found in the tumors when they were small and the fusion phenomenon of the neoplasms scarely existed.The authors suggested that these might be the charaeteristic manefestation of metastases.Their possible pathologic bases and the differentiation of hepatic metastases from primarynodular hepatic metastases from primary nodular hepatoma were also discussed.
出处
《江西医学院学报》
1994年第2期50-53,F004,共5页
Acta Academiae Medicinae Jiangxi
关键词
肝转移瘤
诊断
原发性肝癌
核磁共振
鉴别诊断
hepatic metastases/diagnosis
primary hepatoma/diagnosis
megnetic reso-nance imaging/diagnosis
differential diagnosis
