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相关概念视频

Types of Radioactivity03:23

Types of Radioactivity

The most common types of radioactivity are α decay, β decay, γ decay, neutron emission, and electron capture.
Alpha (α) decay is the emission of an α particle from the nucleus. For example, polonium-210 undergoes α decay:
Nuclear Power02:36

Nuclear Power

Controlled nuclear fission reactions are used to generate electricity. Any nuclear reactor that produces power via the fission of uranium or plutonium by bombardment with neutrons has six components: nuclear fuel consisting of fissionable material, a nuclear moderator, a neutron source, control rods, reactor coolant, and a shield and containment system.
Nuclear Fuels
Nuclear fuel consists of a fissile isotope, such as uranium-235, which must be present in sufficient quantity to provide a...
Nuclear Transmutation03:20

Nuclear Transmutation

Nuclear transmutation is the conversion of one nuclide into another. It can occur by the radioactive decay of a nucleus, or the reaction of a nucleus with another particle. The first manmade nucleus was produced in Ernest Rutherford’s laboratory in 1919 by a transmutation reaction, the bombardment of one type of nuclei with other nuclei or with neutrons. Rutherford bombarded nitrogen-14 atoms with high-speed α particles from a natural radioactive isotope of radium and observed protons being...
Introduction to Nuclear Reprogramming01:14

Introduction to Nuclear Reprogramming

Nuclear reprogramming is the process of switching gene expression of one cell type to that of another cell type, usually from a differentiated cell state to an undifferentiated cell state. Differentiation occurs during processes such as development and morphogenesis, tissue regeneration, and malignancy. Cells can also be artificially induced to reprogram their gene expression by techniques such as nuclear transfer, induced pluripotency, and cell fusion. Such techniques have many applications in...
Isotopes and Radioisotopes01:28

Isotopes and Radioisotopes

In the early 1900s, English chemist Frederick Soddy realized that an element could have atoms with different masses that were chemically indistinguishable. These different types are called isotopes — atoms of the same element that differ in mass. Isotopes differ in mass because they have different numbers of neutrons but are chemically identical because they have the same number of protons. Soddy was awarded the Nobel Prize in Chemistry in 1921 for this discovery.
An isotope containing more...
Radiological Investigation III: Pulmonary Angiogram and PET Scan01:13

Radiological Investigation III: Pulmonary Angiogram and PET Scan

Radiological investigations are paramount in the diagnosis and management of various pulmonary diseases. Two essential investigations are the Pulmonary Angiogram and the Positron Emission Tomography (PET) Scan.
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...

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相关实验视频

Updated: Jul 6, 2026

Proton Therapy Delivery and Its Clinical Application in Select Solid Tumor Malignancies
08:34

Proton Therapy Delivery and Its Clinical Application in Select Solid Tumor Malignancies

Published on: February 6, 2019

放射性核酸治疗是一种放射性核酸治疗.

J F Chatal1, C A Hoefnagel

  • 1Department of Nuclear Medicine, René Gauducheau Cancer Centre, Nantes, France. jfchatal@nantes.inserm.fr

Lancet (London, England)
|September 18, 1999
PubMed
概括
此摘要是机器生成的。

核医学疗法为良性和癌症条件提供了有针对性的辐射方法. 与传统疗法相比,这种治疗是有效的,具有可控的副作用和有利的长期结果.

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Last Updated: Jul 6, 2026

Proton Therapy Delivery and Its Clinical Application in Select Solid Tumor Malignancies
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Proton Therapy Delivery and Its Clinical Application in Select Solid Tumor Malignancies

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Pretargeted Radioimmunotherapy Based on the Inverse Electron Demand Diels-Alder Reaction
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Pretargeted Radioimmunotherapy Based on the Inverse Electron Demand Diels-Alder Reaction

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科学领域:

  • 核医学是一种核医学.
  • 辐射疗法 辐射疗法
  • 在瘤学瘤学.

背景情况:

  • 核医学疗法利用未密封的放射性源来提供有针对性的辐射.
  • 它可以作为手术或治疗良性疾病的医疗治疗的替代方案,如甲状腺毒性和关节炎.
  • 在癌症治疗中,它结合了针对性的选择性和全身效应,类似于化疗.

研究的目的:

  • 审查核医学治疗的应用和结果.
  • 将其疗效和毒性与传统治疗方法进行比较.
  • 突出其在治疗策略,疾病控制和缓解治疗中的作用.

主要方法:

  • 核医学治疗原则和应用的审查.
  • 对良性和恶性疾病的治疗结果的分析.
  • 与化疗和放射治疗的毒性概况和长期后果的比较.

主要成果:

  • 放射性核酸治疗对良性疾病和癌症治疗有效.
  • 毒性主要局限于造血组织,观察到的副作用很少.
  • 长期后果,包括二次癌症,与化疗和放射治疗相比较有利.

结论:

  • 核医学疗法是一种有价值的治疗方式,具有有利的风险-益处概况.
  • 它为各种疾病提供了一种系统性的,但又有针对性的方法.
  • 它的长期安全性和有效性使其成为与传统治疗相比具有竞争力的选择.