儿童肾盂积水对肾血流阻力的影响  

The Renal Blood Flow Resistance in Children with Hydronephrosis

作　　者：陈星[1] 韩秀珍[1] 贾涛[1] 谈钰贞[1] 曹修岩[1] 孙书珍[1] 

机构地区：[1]山东省立医院,济南市250021

出　　处：《中国超声医学杂志》2000年第7期526-528,共3页Chinese Journal of Ultrasound in Medicine

摘　　要：目的 :探讨多普勒肾血流检测在儿童肾梗阻的病理生理学意义及临床应用价值。方法 :用多普勒超声检测 9例肾盂积水患儿主肾动脉、段动脉及叶间动脉的多普勒血流频谱。检测指标为收缩期最大峰值流速 (Vmax)、舒张末最低流速 (Vmin)、 Vmax/ Vmin、 (S/ D)、阻力指数 (RI)、脉动指数 (PI)及△ RI。健康学龄儿童对照 30例。结果 :30例正常学龄儿童多普勒肾血流频谱呈高速低阻型 ,9例梗阻性肾盂积水多普勒肾血流频谱呈低速高阻型 ,三级肾动脉 RI、 PI及 S/ D较正常对照明显升高 ,Vmax及 Vmin降低 (P<0 .0 1) ,6例单侧梗阻两肾间△ RI较正常明显升高。结论 :肾盂内压对肾血流阻力产生影响。多普勒超声检测肾血流 RI、 PI、 S/ D及△Objective: To investigate the changes of renal blood flow in children with hydronephrosis Methods:The renal arteries,segmental arteries and interlobar arteries of 9 hydronephrosis cases were examined by Doppler ultrasonic wave focusing on peak systolic velocity(Vmax),minimum velocity in diastole(Vmin),Vmax/Vmin(S/D),resistive index(RI),pulsatility index(PI)and △RI Results:All the 9 obstructive hydronephrosis cases showed low blood velocity and high resistance RI,PI and S/D of three level renal arteries were significantly increased △RI of two kidneys in 6 cases with either one side involvement was significantly increased.Conclusion:In children with hydronephrosis,either one or both sides of the resistance of renal blood flow might be affected by the inner pressure of renal pelvis Doppler ultrasonic provides a new effective method for diagnosis

关 键 词：多普勒超声 血管阻力 肾盂积水 儿童 

分 类 号：R726.9[医药卫生—儿科]