尿路梗阻患者应用低辐射和低剂量对比剂MSCTU的效果观察

摘要

Objective To observe and analyze the actual effect of low radiation and low dose contrast agent MSCTU in patients with urinary tract obstruction.Methods 100 cases of urinary tract obstruction who received the treatment in our hospital from January 2015 to December 2015 were selected as the object of observation,and divided into conventional dose group and low dose group according to different CT tube current and injection of contrast agent.After CT scan for patients in two groups,analyzed the imaging quality of low dose group with the image of conventional dose group as a standard.Results The score of upper ureter,kidney cross-sectional image,MIP and VR images in low dose group were (20.88±2.43),(19.98±2.13),(18.01±1.01),(19.95±3.09),without statistically significant differences compared with conventional dose group (P＞0.05).The score of middle or lower ureter cross-sectional image,bladder cross-sectional image,MPR and CRP images in low dose group were (25.46±1.56),(22.13±1.45),(24.97±1.98),(23.87±4.23),significantly better than those in conventional dose group,with statistically significant differences (P＜0.05).Conclusion In the clinical diagnosis of urinary tract obstruction,contrast agent low CT tube current and low dose of MSCTU can relatively accurately prepare for upper ureter,renal collecting system obstruction,and urinary tract infarction.%目的 对尿路梗阻患者应用低辐射及低剂量对比剂多层螺旋CT泌尿造影(MSCTU)的实际效果进行观察和分析.方法 选取2015年1月至12月期间在本院接受治疗的尿路梗阻患者100例作为观察对象,将这些患者按照CT扫描管电流不同以及注射造影剂的不同分为两组,常规剂量组和低剂量组;在两组患者实施CT扫描结束后,选择常规组图像为标准来对低剂量组的成像质量进行比较.结果 低剂量组患者在输尿管上段、肾脏横断面图像及全泌尿系统MIP、VR图像评分分别为(20.88±2.43)、(19.98±2.13)、(18.01±1.01)、(19.95±3.09),与常规组比较差异无统计学意义(P＞0.05);而低剂量组其输尿管中下段横断面图像、膀胱横断面图像和MPR及CRP图像相评分分别为(25.46±1.56)、(22.13±1.45)、(24.97±1.98)、(23.87±4.23),与显著优于常规组,差异有统计学意义(P＜0.05).结论 在尿路梗阻的临床诊断中,CT管低电流和低剂量的对比剂MSCTU对患者中上段输尿管、肾集合系统梗阻以及全尿路梗塞均能做出相对准确的诊断.