CT肾脏灌注成像是通过增强前后不同时相CT图像的动态变化来观察组织血流动力学改变。近年来 ,随着影像技术的发展 ,CT灌注成像的应用研究日渐增多 ,其中大多应用于颅脑 ,部分用于胸部、肝脏、胰腺和脾脏等[1～ 4] ,用于肾脏的临床研究有少量报道[5～ 10 ] 。笔者对肾脏灌注成像 CT renal perfusion imaging is to observe the changes of tissue hemodynamics by enhancing the dynamic changes of CT images at different time phases. In recent years, with the development of imaging technology, CT perfusion imaging has been applied more and more, most of them are used in the brain, some for the chest, liver, pancreas and spleen [1-4], clinical research for the kidney A small amount of reports [5 ~ 10]. The author of renal perfusion imaging