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Radioactive Seed Implantation Therapy at Blount Memorial

Learn more about a minimally invasive treatment option for early-stage prostate cancer

Men with early-stage prostate cancer may be candidates for low-dose, radioactive seed implantation (brachytherapy) at Blount Memorial. Radiation oncologist Dr. Daniel Green specializes in this leading-edge procedure, which is performed on an outpatient basis. 

Minimally invasive seed implantation can:

  • effectively target the tumor
  • spare surrounding healthy tissue
  • produce fewer side effects than standard therapies

How It Works

Each patient’s treatment is customized to fit his specific situation. The following is a five-step overview of the basic seed implantation process.

  1. Radioactive seeds are inserted through needles into the prostate gland. The number of seeds implanted depends on the size of the prostate.
  2. Following the procedure, X-rays are taken to document the position of the seeds.
  3. The total time spent at the hospital on procedure day is generally five to six hours.
  4.  About one month after the procedure, a CT (computed tomography) scan of the prostate gland is taken to verify that the seed placement was adequate and to calculate the radiation dosage each area of the gland will receive.
  5. Prostate Specific Antigen (PSA) blood tests will be administered during follow-up visits with the urologist and/or radiation oncologist. The first test generally is conducted three months after the procedure. Additional testing takes place every three to six months. Individual patient results vary, however, it may take 12-36 months for PSA levels to drop to their lowest point. 

Are you a candidate?

If you have been diagnosed with early-stage prostate cancer and are interested in radioactive seed implantation therapy, a special ultrasound study will be performed to determine the exact size and shape of your prostate gland and pelvic anatomy.

Patients with very large prostate glands or whose pelvic bones obstruct portions of the gland are not suitable candidates for seed implantation. Some of these patients may be able to have seeds implanted following hormonal therapy, and possibly external beam radiation treatments, to shrink the prostate gland.

To determine if you are a candidate for seed implantation therapy, schedule an appointment with Dr. Daniel Green.


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