X线数字断层融合技术在泌尿系结石中的应用价值分析  

Application value analysis of X-ray digital tomosynthesis technique in urinary calculi

作　　者：燕翠芳 丁小勇[1] 牛婷婷 牛涛 YAN Cuifang;DING Xiaoyong;NIU Tingting;NIU Tao(Department of Radiology,Fuyang Fifth People’s Hospital,Fuyang,Anhui Province 236000,China)

机构地区：[1]阜阳市第五人民医院放射科,安徽阜阳236000

出　　处：《实用放射学杂志》2025年第1期143-146,共4页Journal of Practical Radiology

摘　　要：目的探讨数字断层融合(DTS)和肾脏-输尿管-膀胱(KUB)X线平片对泌尿系结石的诊断效能。方法将140例泌尿系结石患者随机分为观察组和对照组,各70例。观察组行DTS前进行肠道准备(BP),对照组行DTS前未行BP。对2组患者均行KUB、DTS以及非增强多排CT(UMDCT)检查,由3位医师对3种图像进行判断和比较。结果观察组X线平片对≤5 mm结石检出率明显高于对照组(85.46%vs 33.33%,χ^(2)=30.75,P<0.01),对>5 mm结石检出率也显著高于对照组(100%vs 58.44%,χ^(2)=43.12,P<0.01);观察组DTS对≤5 mm结石检出率明显高于对照组(90.91%vs 55.56%,χ^(2)=17.44,P<0.01),对>5 mm结石检出率2组差异无统计学意义(100%vs 96.10%,P>0.05)。X线平片、DTS和UMDCT之间的有效剂量(ED)差异均有统计学意义(P<0.001)。除DTS外,2组不同影像学敏感度对比差异有统计学意义(P<0.05)。结论DTS是泌尿系结石患者的一种合适的检查方法,能够提高泌尿系结石诊断率,降低患者辐射剂量。DTS对≤5 mm结石检出率会受到BP的影响,而>5 mm结石检出率不受BP影响。DTS诊断敏感度不受BP影响。Objective To explore the diagnostic efficacy of digital tomosynthesis(DTS)and kidney-ureter-bladder(KUB)X-ray plain filmin for urinary calculi.Methods A total of 140 patients with urinary calculi were randomly divided into observation group and control group,with 70 cases in each.The observation group underwent bowel preparation(BP)before DTS,while the control group did not.KUB,DTS and unenhanced multidetector computed tomography(UMDCT)were performed in both groups,and the three images were assessed and compared by three physicians.Results The X-ray plain filmin detection rate of stones≤5 mm in the observation group was significantly higher than that in the control group(85.46%vs 33.33%,χ^(2)=30.75,P<0.01),and the detection rate of stones>5 mm in the observation group was also significantly higher than that in the control group(100%vs 58.44%,χ^(2)=43.12,P<0.01).The DTS detection rate of stones≤5 mm in the observation group was significantly higher than that in the control group(90.91%vs 55.56%,χ^(2)=17.44,P<0.01),but there was no significant difference in the detection rate of stones>5 mm between the two groups(100%vs 96.10%,P>0.05).The effective dose(ED)differed significantly among X-ray plain filmin,DTS and UMDCT(P<0.001).Except for DTS,there were significant differences in imaging sensitivity between the two groups(P<0.05).Conclusion DTS is an appropriate examination method for patients with urinary calculi,which can improve the diagnostic rate of urinary calculi and reduce the radiation dose for patients.The detection rate of stones≤5 mm in DTS is affected by BP,but the detection rate of stones>5 mm is unaffected by BP.The diagnostic sensitivity of DTS is unaffected by BP.

关 键 词：数字断层融合 肾脏-输尿管-膀胱 非增强多排CT 泌尿系结石 

分 类 号：R814.41[医药卫生—影像医学与核医学] R814.42[医药卫生—放射医学] R691.4[医药卫生—临床医学]