Stereotactic Body Radiation Therapy (SBRT)

What is SBRT?

Stereotactic Body Radiation Therapy (SBRT) is an advanced radiation treatment technique that delivers high doses of radiation to targeted tumors anywhere in the body. Similar to radiosurgery for the brain, SBRT is highly precise and effective, using only a few sessions (typically 2–5) over one to two weeks.

Benefits of SBRT

SBRT stands out with its ability to deliver powerful radiation doses with incredible accuracy, offering several advantages for patients. The benefits of SBRT include:

• Higher Local Control Rates: Data shows significantly improved tumor control compared to conventional radiation therapy.
• Versatility: Effective for both new primary and metastatic tumor sites. Often used for spinal, liver, and lung cancers.
• Re-Treatment Option: Safely treats previously irradiated areas while avoiding damage to critical structures like the spinal cord.
• Alternative to Surgery: Ideal for lung cancer patients who are elderly, medically inoperable or prefer to avoid surgery.

How SBRT Works

SBRT uses cutting-edge technology to achieve unparalleled precision and efficiency.

• Varian® On-Board Imager® (OBI): This automated system improves tumor targeting through high-resolution, low-dose imaging. The OBI enables precise patient setup for each session, enhancing treatment safety and accuracy.
• Image-Guided Radiation Therapy (IGRT): Combines advanced imaging and precision radiation delivery for optimal results.

SpaceOAR for Prostate Cancer SBRT

For men undergoing SBRT for prostate cancer, Stony Brook Medicine offers SpaceOAR hydrogel to protect surrounding healthy tissue.

• How It Works: SpaceOAR acts as a spacer between the prostate and rectum, reducing radiation exposure to the rectum.
• Minimally Invasive: The hydrogel is injected before treatment while the patient is awake or under anesthesia. It remains stable throughout radiation therapy and is naturally absorbed by the body afterward.
• Proven Safety and Effectiveness: Clinical trials confirm SpaceOAR significantly reduces rectal pain during treatment and minimizes long-term complications.

Whether treating spinal, liver or lung cancers, or using innovative approaches like SpaceOAR for prostate cancer, our Radiation Oncology Department is equipped to deliver precise, effective, and patient-focused care.