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相关概念视频

Other Nuclides: 31P, 19F, 15N NMR01:16

Other Nuclides: 31P, 19F, 15N NMR

372
Many organic, inorganic, and biological molecules contain spin-half nuclei such as nitrogen-15, fluorine-19, and phosphorus-31. As a result, NMR studies of these nuclei have found extensive applications in chemical and biological research.
While fluorine-19 and phosphorous-31 have high natural abundances (100%) and positive gyromagnetic ratios, nitrogen-15 has a low natural abundance and a negative gyromagnetic ratio. However, nitrogen-15 is still preferred over nitrogen-14 (which has a...
372

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Updated: Jun 11, 2025

18F-Labeling of Radiotracers Functionalized with a Silicon Fluoride Acceptor SiFA for Positron Emission Tomography
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关于F-Fluoroestradiol的更新 18

Sophia R O'Brien1, Christine E Edmonds2, Rebecca E Ward3

  • 1Division of Nuclear Medicine Imaging and Therapy, Department of Radiology, Hospital of the University of Pennsylvania, Philadelphia, PA; Department of Radiology, Division of Breast Imaging, Hospital of the University of Pennsylvania, Philadelphia, PA.

Seminars in nuclear medicine
|October 5, 2024
PubMed
概括
此摘要是机器生成的。

18F-16α-Fluoroestradiol (18F-FES) PET/CT成像被批准用于ER+转移性乳腺癌. 它识别了可能对内分泌治疗有反应的患者,指导治疗决策并改善患者的治疗结果.

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科学领域:

  • 核医学就是核医学.
  • 在瘤学瘤学.
  • 放射化学 放射化学是指辐射化学.

背景情况:

  • 18F-16α-Fluoroestradiol (18F-FES) 是一种雌激素类似物,用于正子发射断层扫描 (PET) 成像.
  • 它向表达ER的细胞中的雌激素受体 (ER),与活检评估的ER状态相关.

研究的目的:

  • 审查18F-FES成像的基本原则.
  • 描述18F-FES PET/CT在乳腺癌和其他疾病中的当前临床应用和新兴研究.

主要方法:

  • 综述了证明18F-FES PET/CT与ER状态相关性的概念验证研究.
  • 对临床批准时间表和SNMMI适当使用标准 (2023) 的分析.

主要成果:

  • 18F-FES PET/CT在美国和法国被批准用于ER+转移性或复发性乳腺癌.
  • 它作为一个生物标志物来预测对内分泌治疗的反应.
  • SNMMI确定了18F-FES PET/CT使用的四个合适的指示.

结论:

  • 18F-FES PET/CT是评估乳腺癌患者ER状态的宝贵工具.
  • 它的使用指导内分泌疗法选择,并有助于疾病管理.
  • 目前正在进行的研究正在探索乳腺癌以外的更广泛的应用.