临床医学工程2026，Vol.33Issue(8)：931-934,4.DOI:10.3969/j.issn.1674-4659.2026.08.0931
低剂量MSCT在输尿管微小结石诊断中的应用价值
Application Value of Low-Dose MSCT in the Diagnosis of Ureteral Microcal-culi
吴军 1李仁杰 1胡锦峰 1叶宏龙1
作者信息
- 1. 珠海市香洲区人民医院 医学影像科,广东 珠海 519070
- 折叠
摘要
Abstract
Objective To investigate the application value of low-dose multi-slice spiral computed tomography(MSCT)in the diagnosis of ureteral microcalculi(stone diameter≤5 mm).Methods A total of 86 patients with ureteral microcalculi admitted to Xiangzhou District People's Hospital of Zhuhai City from January 2025 to December 2025 were retrospectively enrolled as study subjects.According to the actual clinical scanning protocol,they were divided into the low-dose group(n=48,received low-dose MSCT)and the conventional group(n=38,received conventional-dose MSCT).The stone detection rate,radiation dose and image quality were compared between the two groups.Results The stone detection rates of the low-dose group and the conventional group were 93.65%and 94.23%respectively,with no statistically significant difference(P>0.05).The volume CT dose index(CTDIvol)and dose-length product(DLP)in the low-dose group were lower than those in the conventional group(P<0.05).There were no statistically significant differences in image quality indicators such as signal-to-noise ratio,contrast-to-noise ratio,subjective image score and background noise between the two groups(P>0.05).Conclusions Low-dose MSCT has high application value in the diagnosis of ureteral microcalculi.Its stone detection efficacy is equivalent to that of conventional-dose MSCT,while the radiation dose is significantly reduced,which can decrease patients'ionizing radiation exposure.关键词
输尿管微小结石/多层螺旋计算机断层扫描/低剂量/辐射剂量/图像质量Key words
Ureteral microcalculi/Multi-slice spiral computed tomography/Low dose/Radiation dose/Image quality分类
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吴军,李仁杰,胡锦峰,叶宏龙..低剂量MSCT在输尿管微小结石诊断中的应用价值[J].临床医学工程,2026,33(8):931-934,4.
