Wide-band X-ray and gamma-ray imaging of living mouse to reveal pharmacokinetics of At-211

Wide-band X-ray and gamma-ray imaging of living mouse to reveal pharmacokinetics of At-211
复制标题

活体小鼠的宽带 X 射线和伽马射线成像揭示 At-211 的药代动力学

DOI:
10.1016/j.nima.2022.167581
复制
发表时间:
2023
期刊:
Nuclear Inst. and Methods in Physics Research, A
影响因子:
--
通讯作者:
J. Hatazawa
J. Hatazawa
中科院分区:
--
文献类型:
--
作者:
M. Masubuchi;A. Omata;N. Koshikawa;J. Kataoka;H. Kato;A. Toyoshima;K. Ooe;D. Katayama;T. Teramoto;K. Matsunaga;T. Kamiya;T. Watabe;E. Shimosegawa;J. Hatazawa

文献摘要

参考文献

相似文献

核医学治疗是一种治疗方法,在这种治疗方法中,放射性核素标记剂被病变选择性地摄取,并直接照射肿瘤。尤其是At-211,这是一种发射阿尔法射线的核素,预计会非常有效,副作用很少,近年来引起了人们的关注。在实际治疗中,需要实时监测,以确定药物在正确位置的积聚动力学,并估计正常组织的暴露程度,因此需要精确的成像技术。我们使用了一种混合康普顿相机(HCC),它能够进行宽带成像,从特征X射线到核伽马射线,对AT-211 Naat处理过的小鼠进行成像。在麻醉状态下,使用四个HC对注射AT-211 Naat的小鼠进行成像。结果,我们能够用79keV X射线观察活体小鼠的三维药代动力学,以及AT-211 Naat在胃和甲状腺中的蓄积。通过实施BGO主动屏蔽,我们还首次成功地利用570keV的核伽马射线可视化了At-211 Naat在小鼠体内的药物分布。
Nuclear medicine therapy is a treatment method in which a radionuclide-labeled agent is selectively taken up by the lesion, and a tumor is directly irradiated. In particular, At-211, which is an alpha-ray-emitting nuclide and is expected to be highly effective with few side effects, has attracted attention in recent years. In actual treatment, real-time monitoring is required to confirm the dynamics of drug accumulation at the correct location and to estimate the exposure of normal tissues; therefore, accurate imaging technology is required. We used a hybrid Compton camera (HCC), which is capable of broadband imaging, from characteristic X-rays to nuclear gamma rays, to image mice treated with At-211 NaAt. Four HCCs were used to image the At-211 NaAt-injected mouse under anesthesia. As a result, we were able to observe 3D pharmacokinetics in the living mouse by using 79 keV X-rays, and the accumulation of At-211 NaAt in the stomach and thyroid. By implementing the BGO active shield, we also succeeded in visualizing the drug distribution of At-211 NaAt in the mouse using nuclear gamma rays of 570 keV for the first time.
DOI: 10.3769/radioisotopes.67.461
发表时间: 2018
期刊:
影响因子: --
作者:
A. Toyoshima;豊嶋厚史;A. Shinohara;厚子 篠原
通讯作者: 厚子 篠原
DOI: 10.2967/jnumed.117.204651
发表时间: 2018-07-01
影响因子: 9.3
作者:
Poty, Sophie;Francesconi, Lynn C.;Lewis, Jason S.
通讯作者: Lewis, Jason S.
使用混合康普顿相机进行多模态成像的性能演示
DOI: --
发表时间: 2022
期刊:
影响因子: --
作者:
Akihisa Omata;Miho Masubuchi;Nanase Koshikawa;Jun Kataoka;Hiroki Kato;Atsushi Toyoshima;Takahiro Teramoto;Kazuhiro Ooe;Yuwei Liu;Keiko Matsunaga;Takashi Kamiya;Tadashi Watabe;Eku Shimosegawa & Jun Hatazawa
通讯作者: Eku Shimosegawa & Jun Hatazawa