摘要
目的:探讨肝脏多灶性结节状脂肪浸润(HMNFI)的MSCT和MRI影像特点。方法:回顾性分析2017年1月-2018年3月经手术病理及随访复查证实的10例HMNFI;10例均行MSCT和MRI平扫+增强扫描,对结节数量、部位、大小、密度/信号、形态、强化程度和方式进行评估。结果:8例表现为肝实质内弥漫分布的多发结节,2例为孤立结节;10例MSCT平扫均为不均匀稍低密度;10例在MRI同相位病灶呈稍高信号,反相位呈低信号,T2WI脂肪抑制序列1例孤立结节表现为稍低信号,在其余序列所有结节均未见确切显示;MSCT和MRI增强扫描强化方式一致,结节强化程度始终低于正常肝实质,强化曲线与肝实质一致或在门脉期及延迟扫描相对肝实质略下降。结论:MSCT及MRI成像能够明确显示HMNFI的影像特点,尤其是MRI同反相位对诊断与鉴别诊断有重要参考价值。
Objective: To discuss the imaging characters of MSCT and MRI in hepatic multifocal nodular fatty infiltration. Methods: 10 cases of hepatic focal nodular fatty infiltration were diagnosed by histopathologic examination from January 2017 to March 2018. They were examined by plain and enhanced scan with MSCT and MRI, and retrospectively analyzed for the nodules number, location, size, density/signal, shape, degree and pattern of enhancement. Results: 8 cases were multiple nodules, and the other 2 showed isolated nodule. 10 cases of the lesions were low density in MSCT. All the lesions were with hyper-intensity on in-phase(IP) images and hypo-intensity on out-of-phase(OP) images. 1 case with isolated nodule showed a slightly hypo-intensity on T2-FS. All the lesions didn't show in other MRI sequences. The pattern of enhancement in MSCT and MRI showed the same way. The degree of enhancement of the lesions were lower than that of liver parenchyma, the curve of reinforcement of the lesions were the same as the liver parenchyma or slightly lower in portal and delayed scanning. Conclusion: MSCT and MRI imaging can clearly display the features of HMNFI, especially on the in-phase and out-of-phase images, which are helpful for accurate diagnosis.
作者
王滔
陈梅鹃
吴红樱
尹阳
黄伟
WANG Tao;CHEN Mei-juan;WU Hong-ying;YIN Yang;HUANG Wei(People's Hospital of Leshan, Leshan Sichuan 614000, China)
出处
《中国临床医学影像杂志》
CAS
2019年第5期318-321,共4页
Journal of China Clinic Medical Imaging
关键词
脂肪肝
体层摄影术
螺旋计算机
磁共振成像
诊断
鉴别
Fatty liver
Tomography, spiral computed
Magnetic resonance imaging
Diagnosis, differential
