>Prostate Seed Implants

     Transperineal radioactive seed implantation is a radiation therapy modality available at the Emory University School of Medicine for treatment of localized prostate cancer.  The Departments of Urology and Radiation Oncology administer this program jointly.  With this procedure, between 70 and 150 radioactive seeds (each approximately the size of an uncooked grain of rice) are implanted in the prostate gland.  This technique allows higher doses of radiation to be delivered to the tumor site while limiting dose to surrounding normal tissues.  

     Once the radiation oncologist and patient agree that prostate brachytherapy is the preferred treatment, a CT scan is performed to ensure that the prostate is not obstructed by the pubic arch and is in the appropriate size range for implantation.  This study also assists the radiation oncologist in determining the quantity and distribution of seeds needed to treat the prostate.  The actual implant procedure is performed under general anesthesia and with ultrasound guidance on an outpatient basis. The patient is usually able to return to normal activity within forty-eight hours, although he may continue to have soreness and urinary symptoms for some time afterward.

Emory's Prostate Seed Implant Program

     In order to produce the most accurate implant for any prostate patient, it is necessary to obtain prostate volume information and to generate a treatment plan in one operating room session.  The prostate volume data are entered into a dedicated, real-time prostate treatment-planning computer in the operating room.  An optimal loading plan for Iodine-125 seeds is produced while the prostate is anaesthetized.  Thus, the most idealized I-125 prostate seed implant can be accomplished. At Emory, we routinely use this real-time prostate implant system for our I-125 prostate implant patients to achieve the best possible outcome.