Methods:Both side of ureters of 33cases of obstructive ureter and 20volunteers were measured in jet peak velocity,mean velocity,jet duration, interjet interval and accelerative time.

• 方法:对照分析33例输尿管梗阻和20例正常人的尿流峰值速度、平均速度、喷尿时间、喷尿间隔时间、喷尿加速时间。