肺癌颅内多发转移病灶MRI增强联合多序列扫描影像学表现分析  

Imaging Features of Multiple Intracranial Metastatic Lesions of Lung Cancer in MRI Enhancement Combined with Multiple Sequence Scanning

作　　者：耿保伟[1] 廖鹏[1] 张翔 汤厅均 邓超[1] 田劲[1] 胡荣[2] GENG Bao-wei;LIAO Peng;ZHANG Xiang;TANG Ting-jun;DENG Chao;TIAN Jing;HU Rong(Department Of Neurosurgery,Fuling Center Hospital Of Chongqing City,Chongqing 408099,China;Department Of Neurosurgery,The Third Military Medical University of the Chinese people's Liberation Army,Chongqing 408099,China)

机构地区：[1]重庆市涪陵中心医院神经外科,重庆408099 [2]中国人民解放军第三军医大学神经外科,重庆400038

出　　处：《中国CT和MRI杂志》2022年第10期14-16,共3页Chinese Journal of CT and MRI

基　　金：国家重点研发计划课题任务书(2017YFC0111903)。

摘　　要：目的分析肺癌颅内多发转移病灶MRI增强联合多序列扫描影像学表现。方法收集本院2017年3月至2019年6月收治肺癌颅内多发转移77例,均进行MRI检查。对患者所得图像进行分析,主要包括观察患者转移瘤部位、大小、数目、信号强度、病灶强化方式、瘤周围水肿等情况。结果77例患者均为多发病灶,一共发现188个病灶,病灶大小为0.34~6.68cm,平均病灶为(2.64±1.85)cm。主要为幕上侵犯(83.11%);病灶多为T_(1)WI低信号(64.89%),T_(2)WI多为高信号(72.34%);病灶增强扫描:29例为结节状,21例为环形强化,15例为混合型;7例为斑片状强化;5例为单纯脑膜强化。其中有5例(6.49%)患者有出血情况。DWI信号:实质性病灶49例,ADC中49例实质性病灶,表现为等或略高信号;水肿情况:多为重度水肿(32.46%)。结论MRI检查可直观显示转移病灶信号情况,增强扫描联合DWI序列检查可有效提高肺癌颅内转移病灶检出率,多发环形强化和结节状强化病灶、瘤周明显水肿是其特征性表现。Objective To analyze the imaging features of multiple intracranial metastatic lesions of lung cancer in MRI enhancement combined with multiple sequence scanning.Method 77 patients with multiple intracranial metastases of lung cancer treated in our hospital from March 2017 to June 2019 were collected and all patients were examined by MRI.The patient's images were analyzed,mainly including observing the location,size,number,signal intensity,enhancement mode of the lesion,and edema around the tumor.Results The lesions of 77 patients both were multiple lesions.188 lesions were found in total.The size of the lesions was from 0.34 to 6.68 cm,and average size was(2.64±1.85)cm.They were supratentorial invasion(83.11%).Lesions showed mainly low T_(1)WI signals(64.89%),and T_(2)WI signals mainly were high signals(72.34%);The enhanced scan of the lesion showed nodular enhancement in 29 cases,circular enhancement in 21 cases,mixed type in 15 cases;patchy enhancement in 7 cases;and simple meningeal enhancement in 5 cases.5 cases of them(6.49%)had hemorrhage.DWI signal showed 49 cases with solid lesions.There were 49 cases with solid lesions in ADC,showing equal or slightly high signal.Edema was mostly severe(32.46%).Conclusion MRI examination can directly display the signal of metastatic lesions.Enhanced scanning combined with DWI sequence examination can effectively improve the detection rate of intracranial metastatic lesions of lung cancer.Multiple annular enhancement and nodular intensive lesions,and obvious edema around the tumor are its characteristic manifestations.

关 键 词：肺癌颅内多发转移 MRI 增强 多序列扫描 影像学表现 

分 类 号：R445.2[医药卫生—影像医学与核医学]