Tuerdi Batuer, Wang Hui, Huo Zhong, Abula Gulipiyan, Mahemuti Biekemulati, Abulizi Maihemuti
Department of Radiology, the People's Hospital of Xinjiang, Urumqi 830000, China.
Department of Radiology, the People's Hospital of Xinjiang, Urumqi 830000, China. Email:
Zhonghua Yi Xue Za Zhi. 2014 Apr 22;94(15):1157-60.
To evaluate the clinical application value of X-ray digital DTSynthesis (DTS) based on IVU (Intravenous Urography)in urinary calculi contrasted with unenhanced multidetector-row computerized tomography.
75 patients suspected of urinary calculi underwent IVU, DTS based on IVU and UMDCT. The diagnostic sensitivity, specificity, accuracy, positive predictive value and negative predictive of the three imaging ways were acquired according to operations, respectively. Chi-square test was used to evaluate the difference among the three ways.
In 75 cases, 60 cases were proved to be urinary calculi. The diagnostic sensitivity, specificity, accuracy, positive predictive value and negative predictive of IVU, DTS based on IVU,UMDCT is 70.0%, 73.3%, 70.7%, 91.3%, 37.9%; 91.7%, 86.7%, 90.7%, 96.5%, 72.2%; 96.7%, 86.7%, 94.7%, 96.7%, 86.7%, respectively.No significant differences between DTS based on IVU and UMDCT were found in sensitivity, specificity, accuracy, positive predictive value and negative predictive. Both cases are better than IVU in diagnostic ability.
There is no significant difference in diagnostic ability of urinary calculi between DTS and UMDCT. DTS can be used as a routine imaging technique in diagnosis and follow up of urinary calculi.
评估基于静脉肾盂造影（IVU）的X线数字合成（DTS）在尿路结石中的临床应用价值，并与非增强多层螺旋计算机断层扫描进行对比。
75例疑似尿路结石患者接受了IVU、基于IVU的DTS和非增强多层螺旋计算机断层扫描（UMDCT）。分别根据操作获取三种成像方式的诊断敏感性、特异性、准确性、阳性预测值和阴性预测值。采用卡方检验评估三种方式之间的差异。
75例中，60例被证实为尿路结石。IVU、基于IVU的DTS、UMDCT的诊断敏感性、特异性、准确性、阳性预测值和阴性预测值分别为70.0%、73.3%、70.7%、91.3%、37.9%；91.7%、86.7%、90.7%、96.5%、72.2%；96.7%、86.7%、94.7%、96.7%、86.7%。基于IVU的DTS与UMDCT在敏感性、特异性、准确性、阳性预测值和阴性预测值方面无显著差异。两者在诊断能力上均优于IVU。
DTS与UMDCT在尿路结石诊断能力上无显著差异。DTS可作为尿路结石诊断及随访的常规成像技术。
