Portable 90Sr/90Y Prostatic Hyperplasia Applicators

Abstract

In order to seek a new method of curing the benign prostatic hyperplasia (BPH), two different kinds of 90Sr/90Y intracavity applicators, including a urethra-type and a rectum-type, have been developed in China since 1991. The structural design and radiation characteristics of the 90Sr/90Y prostatic hyperplasia applicator are given in this paper. The hypertrophic prostate gland can be irradiated through the wall of the urethra or rectum by 90Sr/90Y beta rays and small quantity of bremsstrahlung radiation from the applicator. Clinical tests indicate that the 90Sr/90Y prostatic hyperplasia applicators provide a safe, effective, non-invasive and economical therapeutic method for BPH. It is especially applicable for old and high-risk patients.