摘要
目的 分析肝结核瘤的MRI表现 ,探讨MRI在诊断和鉴别诊断中的价值。资料与方法 10例肝结核瘤患者行MR自旋回波序列T1WI、T2 WI和快速多层面干扰梯度回波序列动态增强扫描。结果 10例共 12个病灶 ,MRI表现 :(1)自旋回波序列 :T1WI上所有病灶为低信号 ,T2 WI上 10个病灶为不均匀低信号 (8个病灶为中心低信号而边缘为环形或片状的高信号 ,2个为低信号中见到点状高信号 ) ,另 2个病灶为高信号。 (2 )增强扫描 :动脉期10个病灶无强化 ,2个病灶边缘有轻度强化。门脉期和延迟期所有病灶均有不同方式的强化 ,主要为边缘强化和分隔强化。结论 MRI可反映肝结核瘤的病理改变过程 。
Objective To analyze MRI features of hepatic tuberculomas, to evaluate MRI in its diagnosis and differentiation.Materials and Methods Ten cases with hepatic tuberculoma underwent MR dynamic enhanced scanning with SE sequence and FMPSPGR sequence. MRI findings were analyzed.Results Total 12 lesions were found in 10 patients. (1) With SE sequence, all lesions were hypointense on T 1WI, while 10 lesions were inhomogeneous hypointense on T 2WI, of which central hypointensity and peripheral hyperintensity was seen in 8, and punctual hyperintensity in the center was seen in 2. The other 2 lesions appeared as hyperintense signal. (2) With dynamic scanning, no enhancement was seen in 10 lesions during arterial phase, while 2 lesions showed slight peripheral enhancement. During portal venous phase and delayed phase, all lesions displayed some enhancement of various patterns, mainly peripheral or internal septal enhancement.Conclusion MRI can reflect the pathological changes of hepatic tuberculomas, and, thus, it is of great value in making diagnosis and differentiation.
出处
《临床放射学杂志》
CSCD
北大核心
2002年第6期439-442,共4页
Journal of Clinical Radiology
