正常肾脏的磁共振扩散加权成像研究  

Diffusion-Weighted MR Imaging of Kidney

作　　者：李晨霞[1] 孙兴旺[1] 强永乾[1] 

机构地区：[1]西安交通大学医学院第一附属医院影像中心,陕西西安710061

出　　处：《实用放射学杂志》2008年第7期970-972,共3页Journal of Practical Radiology

摘　　要：目的探讨磁共振扩散加权成像在正常肾脏的特点及应用价值。方法选择无泌尿系统疾患的正常成年志愿者40例,采用Philips Gyroscan Intera 1.5T超导型磁共振成像系统,进行肾脏磁共振扩散加权成像,测量正常肾脏皮质及髓质的ADC值。结果磁共振扩撒加权成像能够较清晰地显示肾脏的皮髓质,正常成年人肾脏皮质、髓质及平均ADC值(×10-3mm2/s)在b=300、500、800s/mm2时分别为:3.08±0.52、2.74±0.68和2.91±0.58;2.79±0.51、2.53±0.65和2.63±0.62;2.64±0.43、2.32±0.47和2.48±0.44,皮质ADC值大于髓质。结论磁共振扩散加权成像可以应用于肾脏,有望为肾脏疾病的诊断提供新的帮助。Objective To explore the characteristics and applied value of diffusion -weighted MR imaging of kidney in healthy people. Methods Using Philips Gyroscan Intera 1.5T MR System, DWI of kidney was performed in 40 healthy adult volunteers, the ADCs of renal cortex and medulla were measured. Results The cortex and medulla of the normal kidney could be clearly showed by DWI. The ADCs of the cortex medulla and average were 3.08 ± 0.52,2.74 ± 0.68 and 2.91 ± 0.58 ;2.79 ± 0.51,2.53 ± 0.65 and 2.63 ± 0.62,2.64 ± 0.43,2.32 ± 0.47 and 2.48 ± 0.44 when the b values were 300,500 and 800 s/mm2 , respectively. The ADC was higher in the cortex than that in the medulla. Conclusion DWI can be used in kidney, it may be helpful for the diagnosis of renal diseases.

关 键 词：肾脏 扩散加权成像 磁共振成像 

分 类 号：R322.61[医药卫生—人体解剖和组织胚胎学] R445.2[医药卫生—基础医学]