尿路结石病是泌尿外科的常见病。目前,临床上常依靠X线腹部平片作为确诊的手段,虽然能确定结石是否存在,但不能了解肾及输尿管的功能状态。静脉肾盂造影可观察分肾功能,但不能较早期提示肾功能的改变,且医师及病人接受射线剂量较大,对碘造影剂过敏的病人不能采用此法。膀胱镜能收集分肾尿液以了解分肾功能,但在操作中病人有一定的痛 Urinary tract stone disease is a common urology disease. At present, the clinical often rely on X-ray abdominal plain film as a diagnostic tool, although the stone can determine the existence, but can not understand the functional status of the kidney and ureter. Intravenous pyelography can be observed sub-renal function, but not earlier prompted changes in renal function, and physicians and patients receiving a larger dose of radiation, iodine contrast medium allergic patients can not use this method. Cystoscopy can collect points to distinguish between renal and renal urine, but in the operation of patients with some pain