动态增强MRI与CT在鉴别诊断肾上腺腺瘤与转移瘤中的应用  

Application of Dynamic Contrast-enhanced MRI and CT in Differential Diagnosis of Adrenal Adenoma and Metastasis

作　　者：杨广洋[1] 龙海清[1] 张英 杨海浪[1] 苏强 赵伟华[1] YANG Guangyang;LONG Haiqing;ZHANG Ying;YANG Hailang;SU Qiang;ZHAO Weihua(Department of Radiology,The First People’s Hospital of Xiangtan City,Xiangtan 411101,Hunan,P.R.China)

机构地区：[1]湘潭市第一人民医院放射科,湖南湘潭411101

出　　处：《影像科学与光化学》2021年第6期849-853,共5页Imaging Science and Photochemistry

基　　金：湘潭市科学基金(SF-CP20173003)。

摘　　要：探讨动态增强MRI与CT在鉴别诊断肾上腺腺瘤与转移瘤中的应用。选择73例肾上腺肿瘤患者为研究对象,依据肾上腺肿瘤类型将其分为肾上腺腺瘤组和肾上腺转移瘤组。给予所有患者动态增强MRI与CT检查,记录检查中的相关参数,分析各时间点时MRI廓清率和CT廓清率之间的相关性。两组检查后肿瘤大小、形态、T2WI信号、强化程度及平扫CT值方面差异具有统计学意义(P<0.05)。两组注药后3 min、5 min、7 min、9 min的CT廓清率差异具有统计学意义(P<0.05)。肾上腺转移瘤中,MRI廓清率与CT廓清率在注药后5 min、7 min、9 min,均呈正相关关系。采用动态增强MRI与CT检查对于鉴别诊断肾上腺腺瘤与肾上腺转移瘤具有重要意义。This study investigated the application of dynamic contrast-enhanced MRI and CT in the differential diagnosis of adrenal adenoma and metastasis.73 patients with adrenal tumors were divided into adrenal adenoma group and adrenal metastasis group according to the type of adrenal tumors.All of patients underwent DCE MRI and CT.The relevant parameters were recorded to analyze the tumor clearance rates based on MRI examination with CT clearance rate at each time point.There were significant between-group differences about tumor size and morphology,T2WI signal,enhancement degree and plain scan CT value(P<0.05).After 3 min,5 min,7 min and 9 min of injection,CT clearance rates between groups were significantly different(P<0.05).After 5 min,7 min and 9 min of injection,MRI clearance rate were positively correlated with CT clearance rate.Dynamic contrast-enhanced MRI and CT examination is important to differential diagnosis of adrenal adenoma and metastasis.

关 键 词：肾上腺腺瘤 肾上腺转移瘤 磁共振成像 计算机体层成像 

分 类 号：R445.2[医药卫生—影像医学与核医学] R730.44[医药卫生—诊断学] R736.6[医药卫生—临床医学]