低剂量CTU对输尿管病变的诊断价值

发布时间：2018-02-27 19:18

本文关键词： 低剂量尿路成像体层摄影术 X线计算机输尿管病变　出处：《罕少疾病杂志》2016年02期 　论文类型：期刊论文

【摘要】：目的探讨低剂量CT尿路成像(CTU)对输尿管病变的诊断价值。方法 43例有输尿管病变拟行CTU检查的患者随机分为2组:常规剂量组20例,扫描参数为管电压120KV,管电流350m A;低剂量组23例,扫描参数为管电压120KV,管电流100-120m A。2名医师采用双盲法对全部病例排泄期输尿管横断面及重组图像进行影像质量评分(IQS),评估有效剂量(ED)及临床诊断符合率。结果 2组间排泄期输尿管横断面及重组图像IQS、临床诊断符合率差异无统计学意义(P0.05);低剂量组平均ED[(12.95±1.56)m Sv]较常规剂量组平均ED[(43.20±2.05)m Sv]下降70.02%,差异有统计学意义(P0.01)。结论低剂量CTU在显著降低辐射剂量的同时,获得的影像可以满足临床对于诊断输尿管病变的质量要求。
[Abstract]:Objective to evaluate the diagnostic value of low dose CT urography (CTU) in ureteral lesions. Methods 43 patients with ureteral lesions were randomly divided into two groups: 20 patients with routine dose group. The scanning parameters were as follows: voltage 120kV, current 350 Ma, low dose group 23 cases, The scanning parameters were as follows: tube voltage 120KV, tube current 100-120mA.2 physicians used double blind method to evaluate the imaging quality of ureteral cross-section and recombination images during excretion period in all cases, to evaluate the effective dose EDV) and the coincidence rate of clinical diagnosis. Results 2. There was no significant difference in the coincidence rate of clinical diagnosis between the two groups in ureteral cross section and recombination image (P 0.05), and the average Ed in low dose group [12.95 卤1.56 m Sv] was 70.02% lower than that in normal dose group (43.20 卤2.05 mSv), and the difference was statistically significant (P 0.01). Conclusion low dose CTU is significantly lower than that of normal dose group (P < 0.05). At the same time that the radiation dose was significantly reduced, The obtained images can meet the clinical quality requirements for the diagnosis of ureteral lesions.
【作者单位】：天津海洋石油总医院放射科;天津海洋石油总医院泌尿外科;
【分类号】：R693;R816.7

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