Intracranial Stereotactic Radiosurgery (SRS) is a non-invasive method of delivering a single highly-focused dose of radiation to a target within the brain. This technology is being used by ROA doctors to treat malignant brain tumors (such as brain metastases and gliomas), benign brain tumors (such as acoustic neuromas, meningiomas, and pituitary adenomas), arterio-venous malformations, and functional disorders (such as trigeminal neuralgia). SRS represents an excellent alternative to surgery for many patients. This technology is one of the major advances in the field of neurosurgery and oncology allowing our doctors to cure many diseases during a single, non-invasive treatment in our department. The most common diseases treated with intracranial SRS include:
ROA has by far the longest and most extensive experience with SRS in Northern Virginia and we are proud to offer Frameless SRS for selected patients. There are several commercially available devices that can perform SRS including Proton Beam, CyberKnife®, GammeKnife®, Trilogy®, and TomoTherapy®. This alphabet soup of technology can often be confusing to patients. Here is a brief summary describing these applications:
Proton Beam SRS uses a different type of radiation, protons, to achieve the same treatment goal of delivering a single, highly focused dose of radiation. Therefore, the uses of Proton Bean SRS are the exact same as the other named SRS devices which, in contrast, all use x-rays to accomplish treatment. Proton Beam SRS is currently only available at a few large university cancer centers and is under active investigation. CyberKnife® and GammaKnife® are devices that use many small circular x-ray beams to treat tumors. However, because these machines can only use small circular beams their ability to treat larger and/or irregular targets is limited. In addition, while the rest of these devices can perform x-ray imaging to confirm targeting prior to SRS treatment allowing for frameless treatment, this technique is known as image-guided radiation therapy (IGRT), GammaKnife® always requires an invasive headframe. Beyond this capability, Trilogy® and TomoTherapy® can also perform computed tomography (CT) scans at the time of treatment allowing doctors to use more accurate imaging to guide the SRS treatment. Lastly, the BrainLAB™ beam shaping system is the only device made that allows doctors to use small circular beams OR larger custom-shaped beams providing the versatility to treat small round targets or large irregular targets with optimal accuracy. Based on these advantages ROA, together with Inova Fairfax Hospital, acquired the powerful Trilogy® machine as well as the BrainLAB™ beam shaping system for use in our SRS program.
The brain tumor specialists of ROA are SRS experts, having performed hundreds of cases and publishing numerous papers on SRS since 1999 when our program opened. ROA is the first in Northern Virginia to offer Frameless SRS and the only group in the DC Metropolitan area with the state-of-the art BrainLAB™ system. Together with Inova Fairfax Hospital and our neurosurgical partners we have created a World Class SRS program and are proud to offer the highest quality medical care in the area.
Typical SRS Procedure
Step 1: Consultation
Step 2: Stereotactic Headframe placement
Step 3: CT scan
Step 4: The Treatment
Step 5: Discharge
Intracranial Stereotactic Radiosurgery Publications by ROA Doctors