多参数磁共振成像在移植肾局灶性缺血梗死的诊断价值  

Diagnostic performance of multi-parameter MRI for focal ischemic infarction in transplanted kidney

作　　者：王闯 张玉东[2] WANG Chuang;ZHANG Yudong(Department of Radiology,the People's Hospital of Sihong County,Suqian,Jiangsu Province 223900,China;Department of Radiology,Jiangsu Provincial People's Hospital,Nanjing 210029,China)

机构地区：[1]泗洪县人民医院放射科,江苏宿迁223900 [2]江苏省人民医院放射科,江苏南京210029

出　　处：《实用放射学杂志》2020年第11期1809-1812,共4页Journal of Practical Radiology

摘　　要：目的探讨多参数MRI在移植肾局灶性缺血梗死的诊断价值.方法回顾性分析临床确诊21例移植肾缺血梗死病灶T1 WI、T2 WI、DWI、ADC、DCE-MRI序列的影像学特征.结果21例42处病灶在T1 WI序列2处(4.8%)显示为等或稍低信号;在T2 WI序列13处(30.9%)显示为等或稍低信号;DWI(b值为800 s/mm^2)序列39处(92.9%)显示为稍高或高信号;ADC值42处(100%)均减低;DCE-MRI扫描42处病灶有不同程度强化减弱.结论DWI结合ADC值对移植肾缺血梗死诊断准确性高,可作为常规移植肾状态影像学检查的首选检查.Objective To investigate the diagnostic value of multi-parameter MRI in focal ischemic infarction(FII)of transplanted kidney.Methods Imaging features of multi-parameter MRI including T1WI,T2 WI,DWI,ADC and DCE-MRI were retrospectively reviewed in 21 patients who were clinically confirmed as FII of transplanted kidney.Results Total 42 FII lesions were determined in 21 patients.2/42(4.8%)lesions showed hypo-/iso-signal intensity on T1WI;13/42(30.9%)lesions showed hypo-/iso-signal intensity on T2 WI;39/42(92.9%)lesions showed slightly hyper-signal intensity on DWI;all(100%)lesions showed lower signals on ADC;all lesions showed hypo-contrast enhancement on DCE-MRI.Conclusion DWI with ADC value,shows high accuracy for detecting FII in transplanted kidney,which can be a promising tool for the assessment of transplanted kidney.

关 键 词：移植肾 局灶性缺血性梗死 磁共振成像 

分 类 号：R692.2[医药卫生—泌尿科学] R445.2[医药卫生—外科学]