用动态和静态成像技术评估尿路感染并发症的儿童的功能差异,并使用动态和静态成像技术
1Department of Nuclear Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China.
Revista espanola de medicina nuclear e imagen molecular
|November 29, 2025
概括
患有尿路感染 (UTI) 和水症的儿童的功能差异 (DRF) 在Tc-99m DMSA和Tc-99m DTPA扫描之间有显著差异. Tc-99m DMSA可能会高估严重水缩的功能,建议Tc-99m DTPA进行准确的评估.
科学领域:
- 儿科脏病学 儿科脏病学
- 核医学成像技术 核医学成像技术
- 诊断辐射学 诊断辐射学
背景情况:
- 儿童的尿路感染 (UTI) 可能导致水,影响功能评估.
- 差异性功能 (DRF) 对于治疗儿科尿路感染和水性至关重要.
- Tc-99m二聚糖酸 (DMSA) 和Tc-99m二甲基胺五酸 (DTPA) 是用于评估功能的常见的光学扫描剂.
研究的目的:
- 为了比较Tc-99m DMSA和Tc-99m DTPA光学扫描在患有尿路感染和水症的儿童中的DRF结果.
- 为了评估这两种成像方式的诊断性能.
- 根据水缩症的严重程度,为选择适当的成像策略提供建议.
主要方法:
- 对57名患有尿路感染和ipsilateral hydronephrosis的儿童进行了回顾性分析.
- 根据超声波测量,对水性的严重程度进行分类 (轻度,中度,严重).
- 使用Tc-99m DMSA和Tc-99m DTPA计算DRF,并评估DRF偏差.
- 使用曼-惠特尼U,斯皮尔曼和ROC曲线分析,对DRF值的统计比较和与水缩参数的相关性分析.
主要成果:
- 在Tc-99m DMSA (50.84%) 和Tc-99m DTPA (45%) 之间,在受影响脏 (p < 0.000) 中发现了中位数DRF的显著差异.
- DRF偏差与脏骨盆扩张,囊扩张和体积比率呈正相关性.
- 骨扩张>13.5毫米或骨扩张>8.8毫米预测DRF偏差>5%具有高灵敏度.
结论:
- Tc-99m DMSA衍生的DRF可能会受到尿路感染儿童水缩的程度的影响.
- 在该队列中,Tc-99m DMSA和Tc-99m DTPA之间的DRF评估存在显著差异.
- 推使用TC-99m DTPA进行精确的功能评估,当水发育严重时 (扩张>13.5毫米或直径>23.2毫米),以避免TC-99m DMSA过度估计功能.
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