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经皮肾镜是复杂性上尿路结石首选治疗方法,其经皮肾通道的建立常在X线定位下完成,但长期放射性照射会诱发癌变,严重损伤临床医师的身体健康[1]。因此,超声引导下经皮肾镜手术近年来逐渐引起临床重视。B超引导下经皮肾穿刺定位准确,但进一步建立经皮肾通道较困难,主要原因是目前临床上常用的Amplatz扩张器在B超监视下显像定位难度大。本研究在传统超声引导下经皮肾镜手术中采用“三明治式”
Percutaneous nephrolithotomy is the first choice for the treatment of upper urinary tract calculi. The establishment of percutaneous nephrostomy is usually performed under X-ray localization. However, long-term radioactive irradiation can induce carcinogenesis and seriously impair the health of clinicians [1]. Therefore, ultrasound guided percutaneous nephrolithotomy gradually attracted clinical attention in recent years. B ultrasound guided percutaneous renal biopsy accurate positioning, but to further establish percutaneous renal access more difficult, the main reason is that currently used clinically Amplatz dilator imaging in the B-ultrasound imaging is difficult. This study in the traditional ultrasound-guided percutaneous nephrolithotomy using “sandwich”