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Fig. 1 | BMC Urology

Fig. 1

From: The Pros and cons of balloon dilation in totally ultrasound-guided percutaneous Nephrolithotomy

Fig. 1

a Location of needle was confirmed, needle appeared as the bright “line” under ultrasound(small arrow). b Under the monitoring of ultrasound,location of guidewire was confirmed .Small arrow showed the soft tip of the guidewire coiled in the calyx and big arrows showed the dilated calyx. c Under the monitoring of ultrasound,location of balloon was confirmed; then the balloon was inflated with 25 atm for 1 min(big arrow). The soft tip of the guidewire was coiled in the calyx(small arrow) . d Location of working sheath was confirmed under ultrasound, the dilated calyx collapsed after urine flew out through the sheath

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