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[⁶⁴Cu]FBP8的剂量测量:一个纤维素结合PET探头

David Izquierdo-Garcia^1,2,3,4, Pauline Désogère^1,5, Anne L Philip⁶

¹Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Boston, MA.

medRxiv : the preprint server for health sciences

|July 9, 2024

概括

新的[64Cu]纤维素结合探针#8 ([64Cu]FBP8) 在健康人群中显示出出色的安全性和生物分布. 它的快速清除和低辐射剂量使其非常适合在各种疾病中用于全身纤维素成像.

科学领域:

核医学就是核医学.
放射性药物开发放射性药物开发
医疗成像医学成像

背景情况:

纤维素是血栓形成和炎症中的关键蛋白质.
开发针对纤维素的定子发射断层扫描 (PET) 探针对于疾病诊断至关重要.
[64Cu]纤维素结合探头8号 ([64Cu]FBP8) 是一种新型的PET追踪器,旨在准纤维素.

研究的目的:

评估[64Cu]FBP8在健康人体中的生物分布,安全性和剂量测量.
评估与[64Cu]FBP8.8相关的清除动力学和辐射暴露.
为了确定[64Cu]FBP8对于临床应用的适用性.

主要方法:

一项涉及8名健康受试者的前性研究.
管理约400MBq的[64Cu]FBP8.8的管理.
在注射后0-2,4和24小时进行PET/MRI扫描.
使用OLINDA 2.2软件进行剂量计计算.

主要成果:

[64Cu]FBP8表现出快速的血液清除 (半衰期=67分钟) 和主要通过排泄.
在整个身体上观察到低背景信号.
最高的器官剂量是尿膀,脏和肝脏.
平均有效剂量为0.016 ± 0.0029 mSv/MBq,低于[18F]FDG.

结论:

[64Cu]FBP8表现出有利的剂量,快速的血液清理和脏分泌.
探测器显示低背景信号,并允许高效的全身成像.
[64Cu]FBP8是心血管,瘤和神经疾病中纤维素非侵入性成像的有希望的候选者.

关键词:

有关PET/MRI的研究.阳位子辐射断层扫描 (PET)生物分销生物分销血块血块血块血块血块血块血块血块血块剂量测量方法剂量测量方法有效剂量的有效剂量.纤维素纤维素是一种纤维素.磁共振成像 (MRI) 的使用.探测器探测器探测器探测器

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