What Is Radioactive Particle Implantation

Radioactive particle implantation, full name of radioactive particle intertissue implantation therapy, belongs to brachytherapy therapy. In the 1970s of last century, radioactive particles were implanted into prostate cancer foci in the United States, and good therapeutic effect was achieved. The country began to carry out radioactive particle implantation in the 1980s, and radioactive particle implantation has made great development in the past 10 years.

Iodine-125 particles and palladium-103 particles are commonly used clinically, which are equivalent to small radioactive sources with a length of 1cm and a diameter of 0.5cm. Under the guidance of CT and ultrasound, radioactive particles are directly inserted into the lesion to play the role of brachytherapy. The radiation dose received in the lesion is large, while the dose received in the surrounding normal tissue is small, achieving the purpose of highly conformal radiation therapy with good efficacy.