Objective: To study the feasibility of ultrasonography (US) as a replacement for CT during the diagnosis of ureteral calculi (UC). Materials and Methods: Clinical and imaging data of patients with UC between January 2013 and December 2017 were retrospectively analyzed. According to the imaging method, patients were divided into 3 groups: Group A, CT alone; Group B, CT and US, Group C, US alone. Age, location, and the size of stones were compared among the groups. According to the maximum diameter (MD) measured by using CT in Group B, patients were subdivided into 3 groups (subgroup 1-3): MD <0.5 cm, 0.5 cm <= MD <= 1.0 cm, and MD >1.0 cm. The MD measured by US and CT were compared in the subgroups. Results: A total of 1,289 patients with UC were admitted. The use of CT correlated with age (p = 0.000) and stone location (p = 0.004). The sensitivity and specificity of US were 71.3 and 100%. Positive US results correlated with stone size (p = 0.008), but not location (p = 0.861). The mean MDs of the calculi measured by US and CT: in subgroup 1:0.80 +/- 0.31 and 0.35 +/- 0.05 cm (p = 0.000); in subgroup 2: 0.94 +/- 0.32 and 0.72 +/- 0.16 cm (p = 0.000); in subgroup 3: 1.75 +/- 0.68 and 1.59 +/- 0.52 cm (p = 0.094). Conclusions: US confirmed that UC do not require confirmatory CT. US can replace CT as the initial imaging examination of UC. (C) 2019 S. Karger AG, Basel
第一作者机构：[1]Capital Med Univ, Beijing Tongren Hosp, Dept Urol, 1 Dong Jiao Min Xiang, Beijing 100730, Peoples R China
通讯作者：
通讯机构：[1]Capital Med Univ, Beijing Tongren Hosp, Dept Urol, 1 Dong Jiao Min Xiang, Beijing 100730, Peoples R China[*1]Department of Urology, Beijing Tongren Hospital Capital Medical University, No. 1 Dong Jiao Min Xiang Dongcheng District, Beijing 100730 (China)
推荐引用方式(GB/T 7714)：
Liu Dan,Wu Jixiang,Chen Shan,et al.Ultrasonography Can Replace CT Scans as the Initial Imaging Examination of Ureteral Calculi[J].UROLOGIA INTERNATIONALIS.2019,103(1):68-73.doi:10.1159/000500099.
APA：
Liu, Dan,Wu, Jixiang,Chen, Shan,Liu, Yuexin,Zhang, Guangyin...&Wang, Wei.(2019).Ultrasonography Can Replace CT Scans as the Initial Imaging Examination of Ureteral Calculi.UROLOGIA INTERNATIONALIS,103,(1)
MLA：
Liu, Dan,et al."Ultrasonography Can Replace CT Scans as the Initial Imaging Examination of Ureteral Calculi".UROLOGIA INTERNATIONALIS 103..1(2019):68-73
