目的探讨B超引导建立穿刺通道经皮肾镜气压弹道联合超声碎石术（PCNL）治疗肾结石的疗效。
Objective To evaluate the safety and efficacy of combined pneumatic and ultrasound lithotripsy in percutaneous nephrolithotomy(PCNL) for renal calculi under B-type ultrasound guide.
方法：采用输尿管肾镜气压弹道碎石，术中留置双J管，术后配合ESWL治疗肾盂铸形结石32例（34个肾）。
Methods:32 cases of pyelolithiasis (34 kidneys) were treated by ureteroscopy ballast lithotripsy, and double J catheter was placed during operation, and then followed by postoperative ESWL.
方法：采用输尿管肾镜气压弹道碎石，术中留置双J管，术后配合ESWL治疗肾盂铸形结石32例（34个肾）。
Methods:32 cases of pyelolithiasis (34 kidneys) were treated by ureteroscopy ballast lithotripsy, and double J catheter was placed during operation, and then followed by postoperative ESWL.
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