摘要
目的通过电影磁共振成像（Cine-MRI）技术观察健康成年人平静规律呼吸状态下双肾运动幅度。资料与方法选取57名健康成年志愿者（男28名,女29名）,于平静规律呼吸状态下进行与双肾长轴平行的斜冠状面Cine-MRI检查,测量一次完整呼吸过程中双肾下极运动幅度,比较双侧肾脏及不同性别间肾脏运动幅度的差异。结果 Cine-MRI测得健康成年人平静规律呼吸状态下右肾运动幅度为5.6~16.5mm,平均（9.5±2.1）mm;左肾运动幅度为4.5~13.9mm,平均（8.1±2.0）mm;双侧肾脏运动幅度比较,差异有统计学意义（t=9.30,P〈0.05）;男性左、右侧肾脏运动幅度分别为（8.7±2.0）mm和（10.3±2.2）mm,均大于女性对应侧肾脏运动幅度[分别为（7.5±1.8）mm和（8.8±1.7）mm],差异有统计学意义（t=2.82、4.41,P〈0.05）。结论平静规律呼吸状态下斜冠状面上右肾运动幅度大于左肾,在进行功能磁共振成像时宜选用左肾数据作为参照标准,尤其是当受检者为男性时。
Purpose To observe the healthy adult kidneys’ range of motion in the calm regular breathing state through Cine-MRI. Materials and Methods Cine-MRI was applied to 57 healthy adult volunteers （28 male, 29 female） on oblique coronal plane parallel to the long axis of the kidneys in a state of calm regular breathing. The range of motion of lower renal pole was measured in the process of a full breathing, and was compared between the double kidneys and between different gender. Results The range of motion of the right and left kidney of healthy adult was from 5.6 mm to 16.5 mm, mean （9.5±2.1） mm; and 4.5 mm to 13.9 mm, mean （8.1±2.0） mm, respectively, and it was demonstrated significant difference between bilateral kidneys （t=9.30, P＆lt;0.05）. The range of motion of left and right kidney of the male subjects were （8.7±2.0） mm and （10.3±2.2） mm, which were larger than those of female subjects [（7.5±1.8） mm and （8.8±1.7） mm], and it revealed the significant difference between male and female （t=2.82, 4.41, P＆lt;0.05）. Conclusion The range of motion of the right kidney is larger than that of the left kidney on the oblique coronal plane in the calm regular breathing state. It is better to use the left kidney data as a reference standard by functional MRI, especially for the male subjects.
出处
《中国医学影像学杂志》
CSCD
北大核心
2013年第5期380-382,共3页
Chinese Journal of Medical Imaging
关键词
磁共振成像
电影
肾
运动
Magnetic resonance imaging, Cine
Kidney
Motion
