TY - JOUR AU - Zhou, Mi AU - He, Xiang AU - Zhang, Yuelong AU - Yu, Weiwen PY - 2019 DA - 2019/11/27 TI - Optical puncture combined with balloon dilation PCNL vs. conventional puncture dilation PCNL for kidney stones without hydronephrosis: a retrospective study JO - BMC Urology SP - 122 VL - 19 IS - 1 AB - Accurate puncture and dilation of the target kidney calices for percutaneous nephrolithotomy (PCNL) can be difficult. This study aimed to investigate the advantages of PCNL using optical puncture (i.e. the puncture is visualized on a screen as seen through the needle) combined with balloon dilation vs. conventional puncture methods. SN - 1471-2490 UR - https://doi.org/10.1186/s12894-019-0558-1 DO - 10.1186/s12894-019-0558-1 ID - Zhou2019 ER -