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Radiology:钆双胺和钆特酸葡胺在啮齿类动物模型颅脑中蓄积比较

2018-07-25 shaosai MedSci原创

本研究旨在比较健康小鼠重复注射对比剂钆双胺或钆特酸葡胺后脑内清除动力学及钆化学成分,并将结果发表在radiology上。

本研究旨在比较健康小鼠重复注射对比剂钆双胺或钆特酸葡胺后脑内清除动力学及钆化学成分,并将结果发表在radiology上。

本研究纳入了9周大的小鼠5周内接受5次2.4 mmol/kg钆对比剂,并行T1加权MRI进行了7次随访(分别在1周、1个月、2、3、4、5、12个月)。对颅脑和血清进行去向并利用ICP-MS进行分析样本中钆蓄积。在小脑,在4个时间点进行分析钆成分。组织钆清除动力学有ROC曲线下面积进行比较。

结果为,仅有钆双胺增强的小鼠中发现深部核团有T1高信号,并且从第1个月到最后一次注射持续存在(1年后深部核团信号与脑干比值分别为1.101 ± 0.023 vs 1.037 ± 0.022, P < .001)。1年后在钆双胺注射后总钆(3.25 nmol/g ± 0.30)的75%残留在小脑钆特酸葡胺组未见明显异常T1高信号,并为之在最低水平(0.07 nmol/g ± 0.03)。

本研究表明,在重复注射钆双胺后,大部分钆剂蓄积在脑内。而注射钆特酸葡胺后,仅有少部分钆剂被检出,且随着时间推移,被清除。

原始出处:

Robert P, Fingerhut S, Factor C. et al.One-year Retention of Gadolinium in the Brain: Comparison of Gadodiamide and Gadoterate Meglumine in a Rodent Model.Radiology.DOI:10.1148/radiol.2018172746

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  1. [GetPortalCommentsPageByObjectIdResponse(id=1047592, encodeId=9e8a104e59215, content=梅斯里提供了很多疾病的模型计算公式,赞一个!, beContent=null, objectType=article, channel=null, level=null, likeNumber=50, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=CHANGE, createdTime=Thu Jul 26 02:49:00 CST 2018, time=2018-07-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=334171, encodeId=ef8f3341e10a, content=阅, beContent=null, objectType=article, channel=null, level=null, likeNumber=65, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/vi_32/fhZdOu27e88Voqh19n8eF8cLplo8L4nicKtH0WnE3KFELXns5XDu8rsiceK2HHDZc2SEStia5VV3Pia2QLMVqlWbHw/0, createdBy=6e012139475, createdName=神功盖世, createdTime=Thu Jul 26 00:22:05 CST 2018, time=2018-07-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=334158, encodeId=75cc334158db, content=学习了很有用不错, beContent=null, objectType=article, channel=null, level=null, likeNumber=69, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/oLAjfB7s1ib3IzoRn621JdKCFUI4XvNELcibocrAVU6aUzEVDSaf3rYH08PUYUiagGqxAEhj8g9WqqNvD1CupIpCrmnR2OrqHZh/0, createdBy=7f181365728, createdName=飛歌, createdTime=Thu Jul 26 00:05:09 CST 2018, time=2018-07-26, status=1, ipAttribution=)]
    2018-07-26 CHANGE

    梅斯里提供了很多疾病的模型计算公式,赞一个!

    0

  2. [GetPortalCommentsPageByObjectIdResponse(id=1047592, encodeId=9e8a104e59215, content=梅斯里提供了很多疾病的模型计算公式,赞一个!, beContent=null, objectType=article, channel=null, level=null, likeNumber=50, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=CHANGE, createdTime=Thu Jul 26 02:49:00 CST 2018, time=2018-07-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=334171, encodeId=ef8f3341e10a, content=阅, beContent=null, objectType=article, channel=null, level=null, likeNumber=65, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/vi_32/fhZdOu27e88Voqh19n8eF8cLplo8L4nicKtH0WnE3KFELXns5XDu8rsiceK2HHDZc2SEStia5VV3Pia2QLMVqlWbHw/0, createdBy=6e012139475, createdName=神功盖世, createdTime=Thu Jul 26 00:22:05 CST 2018, time=2018-07-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=334158, encodeId=75cc334158db, content=学习了很有用不错, beContent=null, objectType=article, channel=null, level=null, likeNumber=69, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/oLAjfB7s1ib3IzoRn621JdKCFUI4XvNELcibocrAVU6aUzEVDSaf3rYH08PUYUiagGqxAEhj8g9WqqNvD1CupIpCrmnR2OrqHZh/0, createdBy=7f181365728, createdName=飛歌, createdTime=Thu Jul 26 00:05:09 CST 2018, time=2018-07-26, status=1, ipAttribution=)]
    2018-07-26 神功盖世

    0

  3. [GetPortalCommentsPageByObjectIdResponse(id=1047592, encodeId=9e8a104e59215, content=梅斯里提供了很多疾病的模型计算公式,赞一个!, beContent=null, objectType=article, channel=null, level=null, likeNumber=50, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=CHANGE, createdTime=Thu Jul 26 02:49:00 CST 2018, time=2018-07-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=334171, encodeId=ef8f3341e10a, content=阅, beContent=null, objectType=article, channel=null, level=null, likeNumber=65, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/vi_32/fhZdOu27e88Voqh19n8eF8cLplo8L4nicKtH0WnE3KFELXns5XDu8rsiceK2HHDZc2SEStia5VV3Pia2QLMVqlWbHw/0, createdBy=6e012139475, createdName=神功盖世, createdTime=Thu Jul 26 00:22:05 CST 2018, time=2018-07-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=334158, encodeId=75cc334158db, content=学习了很有用不错, beContent=null, objectType=article, channel=null, level=null, likeNumber=69, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/oLAjfB7s1ib3IzoRn621JdKCFUI4XvNELcibocrAVU6aUzEVDSaf3rYH08PUYUiagGqxAEhj8g9WqqNvD1CupIpCrmnR2OrqHZh/0, createdBy=7f181365728, createdName=飛歌, createdTime=Thu Jul 26 00:05:09 CST 2018, time=2018-07-26, status=1, ipAttribution=)]
    2018-07-26 飛歌

    学习了很有用不错

    0

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