Advances of 125I Radioactive Particle Chain Intracavitary Brachytherapy

Abstract

The radioactive particle chain is a linear array of 125I particles and placed in a tubular conduit. The dose distribution of the particle chain is similar to the shape of a cylinder. It may be adapted to the tumors in the lumen and exerts the radiotherapy effect that may not be achieved by single particles. This article aims to review the history of 125I radioactive particle chains, dose distribution, placement methods and clinical application.

Keywords

• 125i radioactive particles
• radiation therapy
• brachytherapy
• malignant tumor