Prostate brachytherapy is split into two main forms. Low dose rate permanent seed brachytherapy and HDR brachytherapy with or without external beam radiotherapy.
The choice between seed brachytherapy and HDR brachytherapy will depend on your tumour and other factors. Your consultant will discuss with you the best form of brachytherapy for your circumstances as well as other treatment options.
The links on the left hand side contain information that will be helpful to you in your discussions.