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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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Video Experimental Relacionado

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

La terapia con radionucleidos es una terapia de radionucleidos.

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
Resumen
Este resumen es generado por máquina.

La terapia de medicina nuclear ofrece un enfoque de radiación dirigida para las condiciones benignas y cancerosas. Este tratamiento es eficaz, con efectos secundarios manejables y resultados favorables a largo plazo en comparación con las terapias tradicionales.

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Área de la Ciencia:

  • La medicina nuclear es una medicina nuclear.
  • La radioterapia es la radioterapia.
  • Oncología Oncología.

Sus antecedentes:

  • La terapia de medicina nuclear utiliza fuentes radiactivas no selladas para la entrega de radiación dirigida.
  • Sirve como una alternativa a la cirugía o tratamientos médicos para afecciones benignas como la tirotoxicosis y la artritis.
  • En el cuidado del cáncer, combina la selectividad dirigida con efectos sistémicos, similares a la quimioterapia.

Objetivo del estudio:

  • Revisar las aplicaciones y los resultados de la terapia de medicina nuclear.
  • Para comparar su eficacia y toxicidad con los tratamientos convencionales.
  • Para resaltar su papel en las estrategias curativas, control de enfermedades y paliativos.

Principales métodos:

  • Revisión de los principios y aplicaciones de la terapia de medicina nuclear.
  • Análisis de los resultados del tratamiento para enfermedades benignas y malignas.
  • Comparación de perfiles de toxicidad y consecuencias a largo plazo con quimioterapia y radioterapia.

Principales resultados:

  • La terapia de radionucleidos es eficaz para los trastornos benignos y el tratamiento del cáncer.
  • La toxicidad se limita principalmente al tejido hematopoyético con pocos efectos secundarios observados.
  • Las consecuencias a largo plazo, incluidos los cánceres secundarios, se comparan favorablemente con la quimioterapia y la radioterapia.

Conclusiones:

  • La terapia de medicina nuclear es una modalidad de tratamiento valiosa con un perfil de riesgo-beneficio favorable.
  • Ofrece un enfoque sistémico pero dirigido para diversas condiciones.
  • Su seguridad y eficacia a largo plazo lo convierten en una opción competitiva frente a los tratamientos tradicionales.