Treating Brain Tumors with Stereotactic Radiosurgery

CyberKnife® robotic stereotactic radiosurgery (SRS) painlessly delivers precise beams of high-dose radiation to brain tumors and lesions, without incisions, hospitalization, or long recovery time. CyberKnife SRS is a non-invasive alternative to brain cancer surgery and can be used for brain tumors that are considered inoperable because of their location in the head, for those patients who cannot undergo brain cancer surgery due to their poor medical condition, or who refuse surgery. The CyberKnife System also can treat benign, or non-cancerous, tumors and other conditions, such as trigeminal neuralgia and arteriovenous malformations (AVMs).

Treating Brain Tumors with Stereotactic Radiosurgery

CyberKnife robotic stereotactic radiosurgery (SRS) painlessly delivers precise beams of high-dose radiation to brain tumors and lesions, without incisions, hospitalization, or long recovery time. CyberKnife SRS is a non-invasive alternative to brain cancer surgery and can be used for brain tumors that are considered inoperable because of their location in the head, for those patients who cannot undergo brain cancer surgery due to their poor medical condition, or who refuse surgery. The CyberKnife System also can treat benign, or non-cancerous, tumors and other conditions, such as trigeminal neuralgia and arteriovenous malformations (AVMs).

What Are Brain Tumors?

Brain tumors are masses of abnormal cells in the brain that have grown out of control.

In most other parts of the body, it is very important to distinguish between benign (non-cancerous) tumors and malignant tumors (cancers). Benign tumors do not grow into nearby tissues or spread to distant areas, so in other parts of the body they are almost never life-threatening. One of the main reasons malignant tumors are so dangerous is because they can spread throughout the body.

Although brain tumors rarely spread to other parts of the body, most of them can spread through the brain tissue. Even so-called benign tumors can, as they grow, press on and destroy normal brain tissue, causing damage that is often disabling and sometimes fatal. For this reason, doctors usually speak of brain tumors rather than brain cancers. The main concerns with brain tumors are how readily they spread through the rest of the brain and whether they can be removed and not come back.

Brain tumors tend to be different in adults and children. They often form in different areas, develop from different cell types, and may have a different outlook and treatment.

Types of Brain Tumors

  • Acoustic Neuroma
  • Anaplastic Astrocytoma
  • Brain Metastases
  • Chordoma
  • Craniopharyngioma
  • Ependymoma
  • Gangliocytoma
  • Germinoma
  • Glioblastoma Multiforme
  • Glioma
  • Glomus Tumors
  • Hemangioblastoma
  • Meningioma
  • Neurocytoma
  • Neurofibroma
  • Neurofibromatosis
  • Oligodendroglioma
  • Parotid SCCA
  • Pituitary Adenoma
  • Schwannoma
  • Skull Base Tumors
  • Vestibular Schwannoma

Advantages of SRS

  • Treats patients in 5 or fewer visits, depending on tumor size, volume, and location
  • Constantly corrects for patient/tumor movement throughout treatment, ensuring radiation beams are always locked on tumor during treatment
  • Reaches tumors from virtually unlimited directions with robotic mobility
  • Enables clinicians to maximize and conform the dose to the tumor target while limiting radiation exposure to surrounding healthy tissue
  • Outpatient procedure, little or no recovery time and minimal side effects
  • Requires no anesthesia
  • Allows for an immediate return to normal activities

Brain Cancer Before & After Treatment with CyberKnife

82 year old female treated for breast cancer in 2007 and 2012. Follow-up in 2012 she presented with brain metastasis in the right frontal and left occipital parietal lobes and was treated with CyberKnife. The patient developed an additional metastases in her left occipital lobe in 2013, also treated with CyberKnife. The patient then went on to develop subsequent metastases in the right temporal and the left medial cerebellum in February and March of 2014. These new lesions again received CyberKnife treatment. The MRI used for this most recent treatment plan showed the 2 previously treated frontal lesions completely resolved.

Pre-Treatment

Post-Treatment

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