摘要
目的分析低剂量多排螺旋CT尿路成像技术(CTU)对尿路病变的诊断价值。方法选取2015年1月—2016年7月在嘉应学院医学院附属医院行CTU检查的患者270例,按照入院顺序分为A组、B组和C组,每组90例。A组、B组、C组患者分别采用160 m A、120 m A、80 m A管电流进行CTU。分析CTU对3组患者尿路病变的诊断效能,比较3组患者辐射有效剂量、碘对比剂用量及CTU成像效果评分。结果 3组患者中,CTU诊断尿路结石、泌尿系统畸形、肾肿物的灵敏度、特异度、阳性预测值、阴性预测值均为100.00%,约登指数均为1.00。A组患者中,CTU诊断尿路上皮癌的灵敏度为94.73%,特异度为100.00%,阳性预测值为100.00%,阴性预测值为89.47%,约登指数为0.95;B组患者中,CTU诊断尿路上皮癌的灵敏度为95.00%,特异度为100.00%,阳性预测值为100.00%,阴性预测值为100.00%,约登指数为0.95;C组患者中,CTU诊断尿路上皮癌的灵敏度为94.73%,特异度为100.00%,阳性预测值为100.00%,阴性预测值为97.22%,约登指数为0.94。C组患者辐射有效剂量和碘对比剂用量低于A组和B组,B组患者辐射有效剂量和碘对比剂用量低于A组(P<0.05)。3组患者肾盏、肾盂、上段输尿管、中段输尿管、下段输尿管、膀胱CTU成像效果评分比较,差异均无统计学意义(P>0.05)。结论低剂量CTU能满足尿路病变成像需求,对尿路病变的诊断价值较高。
Objective To analyze the diagnostic value of low-dose multi-slice spiral CT urinary tract imaging（ CTU） on urinary tract disease. Methods From January 2015 to July 2016,a total of 270 patients undergoing CTU were selected in the Affiliated Hospital of Medicine School,Jiaying University,and they were divided into A group,B group and C group according to registration order,each of 90 cases. Patients of A group received CTU with 160 m A tube current,of B group with 120 m A,of C group with 80 m A. Diagnostic efficiency on urinary tract disease of the three groups was analyzed,effective radiation dosage,iodine contrast medium dosage and CTU imaging score were compared among the three groupps. Results Of the three groups, sensitivity, specificity, positive predictive value and negative predictive value of CTU on urinary calculi,urinary malformation and renal mass was 100. 00%, respectively, Youden index was 1. 00, respectively; of A group, the sensitivity of CTU on urothelium carcinoma was 94. 73%, the specificity was 100. 00%, the positive predictive value was100. 00%,the negative predictive value was 89. 47%, Youden index was 0. 95; of B group, the sensitivity of CTU on urothelium carcinoma was 95. 00%,the specificity was 100. 00%,the positive predictive value was 100. 00%,the negative predictive value was 100. 00%, Youden index was 0. 95; of C group, the sensitivity of CTU on urothelium carcinoma was94. 73%,the specificity was 100. 00%, the positive predictive value was 100. 00%, the negative predictive value was97. 22%,Youden index was 0. 94. Effective radiation dosage and iodine contrast medium dosage of C group were statistically significantly lower than those of A group and B group,meanwhile effective radiation dosage and iodine contrast medium dosage of B group were statistically significantly lower than those of A group（ P 〈 0. 05）. No statistically significant differences of CTU imaging score of kidney calices,kidney pelvis,superior ureter,middle ureter,inferior ureter or bladder was found among the three groups（ P 〉 0. 05）. Conclusion Low dose CTU can reach the standard of urinary tract imaging,has relatively high diagnostic efficiency.
出处
《实用心脑肺血管病杂志》
2016年第B12期177-179,共3页
Practical Journal of Cardiac Cerebral Pneumal and Vascular Disease
基金
梅州市科技局课题(2015B043)
