Objective: To explore the clinical effect of color Doppler ultrasound in the guidance of percutaneous nephrolithotomy (PCNL) to avoid injuring renal vessels.

• 摘要目的：探讨在经皮肾取石术(PCNL)中利用彩色多普勒超声引导穿刺避免肾血管损伤的临床价值。