Accredited Radiation Oncology Program in Reston, Virginia


Reston Hospital Center's radiation oncologists provide cancer treatment using the most advanced types of radiation therapy. Additionally, our radiation therapy program is accredited by the American College of Radiology (ACR), and our oncology program is accredited by the American College of Surgeons' Commission on Cancer (CoC).

For more information about our radiation oncology program, please call (877) 689-3627.

What is radiation therapy?

Radiation therapy, also called radiation oncology, uses high-energy radiation to minimize or kill malignant cancer cells. Our comprehensive cancer care program uses radiation therapy in a variety of ways to deliver cancer treatment that meets your specific needs.

Radiation therapy is used as a cancer treatment for many types of cancer, including:

Types of radiation therapy we offer

You and your physician typically choose from two general types of radiation therapy—external beam or brachytherapy—or use a combination of both therapies to treat your specific type of cancer.

Reston Hospital also offers preoperative magnetic resonance imaging (MRI) tumor scanning and computed tomography (CT) simulation scanning with respiratory correlation for precise targeting and exact treatment planning.

External beam radiation

Procedures using external beam radiation at Reston Hospital may involve:

  • Image-guided radiation therapy (IGRT)
  • Intensity-modulated radiation therapy (IMRT)
  • Stereotactic radiosurgery (SRS)
  • Stereotactic body radiotherapy (SBRT)
  • 3D conformal radiotherapy

Image-guided radiation therapy and intensity-modulated radiation therapy link highly detailed imaging scans with focused radiation beams to target certain small, well-defined tumors.

A special type of external beam radiation, called stereotactic radiosurgery or stereotactic body radiotherapy, uses focused beams to target tumors. Stereotactic radiation procedures are often known by manufacturers' equipment brand names, including Trilogy, Truebeam® and others. Such procedures deliver the right amount of radiation to tumors in a relatively short period of time and reduce damage to nearby healthy tissue.

We use advanced external beam radiation technology that incorporates respiratory gating (adjustment) to track breathing and deliver radiation more precisely while protecting surrounding tissues.


Brachytherapy, which involves internal application of a radiation source may include:

  • High-dose-rate brachytherapy
  • Partial breast irradiation
  • "Seed" implants

Internal radiation treatments involve inserting a source of radioactive material—often called a "seed"—into a body cavity. For treatment of gynecologic cancer or breast cancer, this sealed source is sent into the body through a catheter for a short period of time, usually just a few minutes.

You may be a candidate for accelerated partial breast irradiation (APBI), a procedure that delivers a course of radiation treatment over five days rather than several weeks.

Gynecologic cancer may respond to high-dose rate (HDR) radiation treatment, which uses several types of specialized equipment to target cancer sites.

Brachytherapy for prostate cancer is a one-time procedure performed in the operating room, where the radioactive seeds are implanted directly into the prostate gland.