摘要
目的 分析肝脏局灶性结节增生(focal nodular hyperplasia,FN H)动态增强MRI征象,探讨轮辐征与病灶大小的关系。方法 回顾分析经手术及病理证实的260例306枚肝脏局灶性结节增生动态增强MRI图像,所有病灶根据测量的最大径分为≤2cm组、2~5cm组和>5cm三组,分析轮辐征在不同大小组别中的差异。结果 306枚FNH病变的平均大小为4.45±2.56cm,检出癜痕170例,假包膜62例,供血动脉19例,具有轮辐征175例,FNH轮辐征、瘢痕、假包膜及供血动脉的检出,在不同大小分组中表现差异有统计学意义(P均<0.05)。结论 动态增强MRI对轮辐征的检出取决于病灶大小,轮辐征对于较大FNH (>5.0cm)的诊断更有意义。
Objective To analyze dynamic enhanced magnetic imaging features in liver focal nodular hyperplasia(FNH),and to access the relationship spoke-wheel sign with lesion size.Methods We retrospectively assessed enhanced MRI of 260 patients including 306 lesions with FNH pathologically confirmed after surgical resection.According to the lesion size measured,they were divided into 3 groups:≤2 cm group,2-5 cm group and>5cm group and the differences were analyzed in the spoke wheel sign.Results Mean size of 306 FNH lesions was 4.45±2.56cm.There were detected central scars 170 cases,pseudocapsule 62 cases,feeding vessel 62 cases and the spoke wheel signs 175 cases.Central scars,pseudocapsule,feeding vessel,the spoke wheel sign and enhancement mode of significant difference was found in those performance in different size groups(P<0.05).Conclusion The detection of central scar,pseudocapsule,feeding artery and the spoke wheel sign depend on lesion size at dynamic contrast-enhanced MRI,the spoke wheel sign is more meaningful for the diagnosis of larger FNH lesion(>5.0cm).
作者
刘佳
徐鹏举
张珍
LIU Jia;XU Peng-ju;ZHANG Zhen(Department of MRI,People's Hospital of Rizhao,Rizhao 276800,Shandong Province,China;Department of Radiology,Zhongshan Hospital,Fudan University,Shanghai 200032,China)
出处
《中国CT和MRI杂志》
2024年第3期134-136,共3页
Chinese Journal of CT and MRI
关键词
局灶性结节增生
肝脏
轮辐征
磁共振成像
病灶大小
Focal Nodular Hyperplasia
Liver
Spoke Wheel Sign
Magnetic Resonance Imaging
Lesion Size
