血清和尿液加多基基准间隔在加多布托罗尔 (Gadobutrol) 后患有正常功能患者
Jennifer S McDonald1, Patrick L Day, Grant M Spears
1From the Department of Radiology, Mayo Clinic, Rochester, MN (J.S.M., R.J.M.); Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN (P.L.D., J.A.B., P.J.J.); and Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN (G.M.S.).
Investigative radiology
|February 21, 2025
概括
这项研究表明,在患有正常功能患者的血清加多 (Gd) 水平在加多布托罗尔对比度增强MRI后大约56天内恢复到基线. 然而,尿液Gd水平可能需要更长的时间,大约132天,才能低于参考间隔.
科学领域:
- 放射学 放射学是一门学科.
- 药理动力学 药理动力学
- 毒理学 毒理学 毒理学
背景情况:
- 基于加多的对比剂 (GBCA) 增强MRI功效,但引起了对保留的加多 (Gd) 的担忧.
- 现有的Gd参考间隔是在正常功能且没有GBCA的个体中建立的.
- 这项研究解决了了解对比剂后患者Gd清除的需要.
研究的目的:
- 为了确定血清和尿液中加多 (Gd) 清除,在静脉注射加多布托罗尔用于MRI后,患者的功能正常.
- 评估当前Gd参考区间在GBCA后期的适用性.
主要方法:
- 招募的患者功能正常 (eGFR ≥60毫升/分钟) 并没有最近的GBCA暴露.
- 在多个时间点收集血清和尿液样本,最多在gadobutrol MRI后84天.
- 使用感应合血质谱法 (ICP-MS) 量化Gd度.
主要成果:
- 药物动力学分析表明,Gd.的多分部清除模型.
- 95%的患者血清Gd水平低于未暴露的参考间隔约56天.
- 95%的患者尿液Gd水平低于未暴露的参考间隔约132天.
- 在研究队列中没有观察到与Gd相关的自我报告的毒性.
结论:
- 目前用于血清和尿路加多清除的参考间隔不适合在加多布托罗尔暴露后5个月内的患者.
- 这些发现突出了从血清和尿液中消除加多所需的长时间.
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