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目的 讨论结石CT值对经尿道输尿管软镜钬激光碎石治疗肾结石碎石效率?结石清除率及并发症的影响?方法 将2019年2月至2021年5月于我院泌尿外科行经尿道输尿管软镜钬激光碎石治疗的100例肾结石患者作为本次研究对象?所有患者均接受术前CT检查，获取CT值，均接受经尿道输尿管软镜钬激光碎石治疗，并在术后以CT检查结石清除率?结果 100例入选患者术前结石CT值均值为(969.5±237.8)Hu，其中结石CT值<1000Hu与≥1000Hu的分别有55例(55.00%)?45例(45.00%)，将其分为甲组“,”Objective To discuss the effect of stone CT value on lithotripsy efficiency， stone clearance and complications of transurethral ureteroscopic holmium laser lithotripsy in the treatment of renal calculi. Methods One hundred patients with renal calculi who underwent transurethral ureteroscopic holmium laser lithotripsy in the Department of Urology of our hospital from February 2019 to may 2021 were selected as the subjects of this study. All patients underwent preoperative CT examination， obtained CT values， received transurethral ureteroscopic holmium laser lithotripsy， and checked the stone clearance rate by CT after operation. Results The mean value of preoperative stone CT in 100 patients was (969.5±237.8) Hu， of which 55 cases (55.00%) and 45 cases (45.00%) with stone CT value0.05). The operation time in group B was significantly longer than that in group A (P 0.05). Conclusion When the stone CT value≥1000 Hu， it will prolong the time- consuming of transurethral ureteroscopic holmium laser lithotripsy in patients with renal stones and affect the lithotripsy efficiency， but it has little impact on the postoperative stone clearance and complications. The preoperative stone CT value can be used as an effective index to evaluate the operation time and lithotripsy efficiency， so as to provide a scientific basis for formulating the operation plan.