Methods:Using the color Doppler ultrasound to monitor the centesis of kidney cysts and to orientate the best position in the process of centesis.

• 方法:利用超声多普勒原理,采用彩色多普勒监测肾囊肿穿刺抽液,注液时所产生的彩色多普勒图像,从而确定穿刺针最佳位置。