Related Experiment Video
Updated: Feb 13, 2026
11:38
Voluntary Breath-hold Technique for Reducing Heart Dose in Left Breast Radiotherapy
Published on: July 3, 2014
47.5K
α-Emitters for Radiotherapy: From Basic Radiochemistry to Clinical Studies-Part 1
Sophie Poty1, Lynn C Francesconi2,3, Michael R McDevitt1,4
1Department of Radiology and Program in Molecular Pharmacology, Memorial Sloan Kettering Cancer Center, New York, New York.
Summary
Alpha-emitting radionuclides offer potent cancer cell killing due to their short range and high energy transfer. However, limited availability and physical properties restrict their therapeutic use, despite their potential.
Area of Science:
- Nuclear medicine
- Radiochemistry
- Medical physics
Background:
- Alpha-emitting radionuclides possess high linear energy transfer and short particle ranges, leading to efficient cancer cell killing.
- Despite a wide array of alpha emitters, only a select few are suitable for therapeutic applications.
- Radioisotope availability and physical characteristics like half-life are critical limiting factors.
Purpose of the Study:
- To review the diversity of alpha-emitting radionuclides.
- To discuss their fundamental radiochemistry and associated limitations.
- To identify hurdles in their therapeutic application.
Main Methods:
- Literature review of alpha-emitting radionuclides.
- Analysis of radiochemical properties and physical characteristics.
- Evaluation of factors influencing therapeutic utility.
Main Results:
- Exploration of various alpha emitters and their properties.
- Identification of key radiochemical and physical constraints.
- Discussion of challenges in clinical translation.
Conclusions:
- The therapeutic potential of alpha emitters is significant but constrained by practical factors.
- Further research is needed to overcome limitations in availability and physical properties.
- Optimizing the use of alpha emitters requires addressing radiochemical and logistical challenges.
Related Concept Videos
02:27Energy Basics
47.9K
Chemical reactions, such as those that occur when you light a match, involve changes in energy as well as matter.
47.9K
01:21Aneurysm II: Clinical Manifestations and Diagnostic Studies
378
Thoracic, aortic arch and abdominal aneurysms are significant vascular conditions that can present with various clinical manifestations and lead to serious complications. Understanding these manifestations and the appropriate diagnostic studies is essential for effective management and treatment.Thoracic Aortic AneurysmsThoracic aortic aneurysms often remain asymptomatic until they reach a size that impinges on adjacent structures. They typically cause deep, diffuse chest pain that radiates to...
378
01:30Hypertension III: Clinical Manifestations and Diagnostic Studies
610
Hypertension is asymptomatic and also referred to as the "silent killer" until it progresses to a severe stage or causes target organ disease. Patients may experience symptoms stemming from the strain on blood vessels and tissues in various organs or the heart's increased workload.Physical exams might show no abnormalities other than high blood pressure. Signs of vascular damage, when present, correspond to the organs supplied by the affected vessels, leading to target organ damage. For...
610
01:20Venous Thrombosis II: Clinical Manifestations and Diagnostic Studies
354
The key difference between Superficial Vein Thrombosis (SVT) and Deep Vein Thrombosis (DVT) lies in their location and severity.Clinical ManifestationsSVT typically presents with localized pain, tenderness, and redness along the course of a superficial vein, often accompanied by a palpable, cord-like structure under the skin. This condition is usually less dangerous than DVT but can be uncomfortable and may lead to complications such as cellulitis or, rarely, a clot extension into the deep...
354
01:21Basicity of Aliphatic Amines
6.9K
Amines can behave as Brønsted–Lowry bases by accepting a proton from the acid to form corresponding conjugate acids. Due to a lone pair of nonbonding electrons, aliphatic amines can also act as Lewis bases by forming a covalent bond with an electrophile.
To measure the basicity of amines, two conventions are generally used. The first defines Kb as the basicity constant for the deprotonation reaction of water by the amine, as presented in Figure 1. Conventionally, lower Kb indicates higher...
To measure the basicity of amines, two conventions are generally used. The first defines Kb as the basicity constant for the deprotonation reaction of water by the amine, as presented in Figure 1. Conventionally, lower Kb indicates higher...
6.9K
01:22Basic Operations on Signals
1.1K
Basic signal operations include time reversal, time scaling, time shifting, and amplitude transformations. These operations are fundamental in signal processing and analysis.
Time Reversal mirrors a continuous-time signal about the vertical axis at t=0. This is achieved by substituting t with −t. For example, if a signal x(t) is considered, the time-reversed signal is x(−t). This operation can be graphically represented, showing the mirrored signal.
Time Reversal mirrors a continuous-time signal about the vertical axis at t=0. This is achieved by substituting t with −t. For example, if a signal x(t) is considered, the time-reversed signal is x(−t). This operation can be graphically represented, showing the mirrored signal.
1.1K