BrachyTherapy (LDR and HDR)

For more detailed information, please read our Patient Information Sheet (pdf).

Pre - Treatment
A volume study to determine the shape and size of the prostate will usually be performed a few days to a few weeks before the implant. Using a transrectal ultrasound unit, the prostate is localized and a computer will take several pictures measuring the size and shape of the gland. These pictures allow the radiation physicist to determine the number of needles and seeds needed to treat the prostate using advanced computerized dosimetry, and exactly where they should be placed.

Within four weeks prior to the implant, blood tests are done and possibly an electrocardiogram (EKG) and chest X-ray. The test results are used by the anesthesiologist to assure the safe delivery of anesthesia.

Treatment
Following the initial testing with your radiation oncologist, a course of treatment will be prescribed. Depending on the size and stage of the prostate cancer, either permanent radioactive seeds will be inserted into the prostate, or High Dose Rate (HDR) radiation will be performed.

Post - Treatment
Immediately following treatment, the patient can accept visitors and resume a normal diet. Heavy lifting or any type of strenuous physical activity should be avoided for the first few days after treatment. After that, most patients are ready to return to a normal activity level. Antibiotics are used for several days after the procedure as a precautionary measure against possible infection.

Radiation Safety
Many patients express concern about whether an implant poses any potential dangers of radiation exposure to their family and friends. The seeds used in implant therapy emit a very low energy radiation, the majority of which does not go beyond the prostate itself. As a precautionary measure, small children and pregnant women should not sit on the lap of a patient for the first two months following the implant.

Suggested Follow-Up Schedule
After a seed implant, follow-up with the urologist and radiation oncologist should be done on a regular basis. An initial visit will be scheduled in the first month following the implant to check final seed placement using a CT scan. Further visits are then scheduled every three to six months (depending on the patient) for the first five years, to monitor treatment progress. Physical examination and blood tests are performed periodically, and follow-up after the first five years should be planned annually.