The interstitial radium therapy or brachytherapy irradiate the localized prostate cancer by implantation of radioactive iodine or irridium seeds in the prostate under ultrasound guidance
This technique of brachytherapy ideally treats small tumors : rate of PSA lower than 10 ng / ml) , well differentiated cancer (Gleason score lower than 7) developed within a little hypertrophied prostate, although here still alongside the external beam radiation therapy an hormonotherapy can prelude the treatment in order to decrease the size of the gland.
A previous surgery of benign prostatic hyperplasia (BPH) like a trans urethral resection (TURP) is a contraindication to carrying out interstitial radium therapy. Certain locations of the prostate cancer in the gland make this treatment unfavorable.
The way to deliver the treatment, advantages, efficiency and complications or risks of brachyterapy are explained on the CEDIT (CEDIT = ” Evaluation commitee and Diffusion of Technological innovations in public health – Paris Hospital”)