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Radiology:钆螯合物在孕妇中的安全性:灵长类动物在增强检查后子宫内钆剂水平很低

2017-09-22 shaosai MedSci原创

本研究验证恒河猴怀孕期间母体静脉注射对比剂后组织中钆剂是否会有残留,并将结果发表在Radiology上。

本研究验证恒河猴怀孕期间母体静脉注射对比剂后组织中钆剂是否会有残留,并将结果发表在Radiology上。

本研究共纳入了妊娠恒河猴及其后代(n=10),旨在探究孕妇营养不良对胎盘和胎儿发育的影响。在妊娠期的第85天和135天,进行静脉注射造影剂胎盘磁共振成像检查。在进行第二次钆特醇注射磁共振检查直接进行羊膜囊穿刺术。在娩出之后,对其后代进行随访观察7个月。对每个恒河猴的8种不同的器官的组织标本和血液标本提取。利用等离子质子谱评价钆剂水平。

结果为,在注射对比剂后50天后,羊水中钆剂浓聚为0.028 × 10 -5 %ID/g(每克组织注射剂量百分比)。在股骨(平均为2.5 × 10 -5 %ID/g;范围 [0.81-4.1] × 10 -5 %ID/g)、肝脏(平均为0.15 × 10 -5 %ID/g; 范围[0-0.26] × 10 -5 %ID/g)中的钆剂较一致。在其他组织钆剂水平无法探测,除了在1例皮肤(0.07 × 10 -5 %ID/g)、1例脾标本(0.039 × 10 -5 %ID/g)和1例颅脑标本(0.13 × 10 -5 %ID/g)中检测到。

本研究表明,经母体注射造影剂后,钆剂在羊水中出现表明钆剂能够胎盘。在两次钆剂注射后,恒河猴组织中钆剂含量极低,这在娩出后保持较低的水平。

原始出处:

Prola-Netto J, Woods M, Roberts VHJ, et al,Gadolinium Chelate Safety in Pregnancy: Barely Detectable Gadolinium Levels in the Juvenile Nonhuman Primate after in Utero Exposure. Radiology. 2017.DOI: 10.1148/radiol.2017162725

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    2017-09-22 林3301

    学习了解一下

    0

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    2017-09-22 有备才能无患

    经母体注射造影剂后.钆剂在羊水中出现表明钆剂能够胎盘.在两次钆剂注射后.恒河猴组织中钆剂含量极低.这在娩出后保持较低的水平.

    0

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