Stereotactic Body


Stereotactic radiosurgery is a non-invasive, non-surgical treatment option applied to tumors and lesions in difficult-to-reach or inoperable regions of the body, where dangers posed by traditional surgery are too great. The treatment delivery consists of a one-time application of multiple, highly focused beams of radiation that converge on a small area of abnormal tissue, while sparing the healthy nearby tissue. This technique is most commonly used in areas such as the brain or spinal cord.

Before treatment, you will undergo magnetic resonance imaging (MRI) and computed tomography (CT) scans in order to capture up-to-date information on the size and position of the tumor in your body. The images are fed into a 3-D software program to simulate anatomical structures as well as the exact shape of the tumor.

Houston Methodist radiation oncologists, neurosurgeons, radiation physicists and dosimetrists (member of the radiology team) collaborate and implement an individualized treatment plan.

Novalis® radiosurgery
Novalis® radiosurgery delivers non-invasive, shaped-beam radiosurgery to treat cancerous and non-cancerous conditions of the entire body with one-of-a-kind shaped-beam technology. Shaping the beam precisely to your tumor delivers the best possible treatment dose to while healthy surrounding tissue is protected.

Houston Methodist is proud to offer Novalis radiosurgery, which provides the following benefits:


    No tumor or lesion is perfectly shaped. Novalis shapes the cancer-fighting radiation beam around your tumor or lesion, ensuring that the maximum prescribed dose of high-energy radiation is delivered to the abnormal tissue only  Protects surrounding healthy tissue  Adapts treatment to your breathing and other body movements so that radiation delivery is always safe, complete and accurate



    Delivers treatment in as few as 15 to 20 minutes for a more comfortable treatment experience when compared with other radiosurgery treatment options Reduces the likelihood of body or tumor movements, ensuring that treatment is delivered with the highest possible accuracy Offers one-time treatment or a series of treatments based on your doctor’s recommendation



  • Offers flexible treatment options to ensure that you receive the best treatment for your condition
  • Delivers one of the highest dose rates to treat tumors deep inside the body or brain
  • Offers hope to those with conditions once considered untreatable and for whom surgery is not an option


Features frameless radiosurgery, which offers you a more comfortable and non-invasive alternative to other radiosurgery systems that require immobilization with a head ring that attaches to the skull. 

Multidisciplinary collaboration within the Department of Radiation Oncology and with other institutions results in scientific research that is translated to the outstanding clinical care we provide. In addition, our standard of care is routinely assessed and updated to ensure that we continue to offer the most effective services to our patients.

Learn more about the variety of innovative radiation therapies offered at Houston Methodist.