CyberKnife® System Experience:
Inoperable Lung Cancer
WHAT IS THE CYBERKNIFE SYSTEM:
The CyberKnife System is a non-invasive treatment for cancerous and non-cancerous tumors and other conditions where radiation therapy is indicated. It is used to treat conditions throughout the body, including the prostate, lung, brain, spine, head and neck, liver, pancreas and kidney, and can be an alternative to surgery or for patients who have inoperable or surgically complex tumors. CyberKnife treatments are typically performed in 1 to 5 sessions. The CyberKnife System has more than two decades of clinical proof and has helped thousands of cancer patients.
WHY WE CHOSE TO TREAT WITH THE CYBERKNIFE SYSTEM:
Epic Care is a multi-specialty practice with five community cancer centers, each with its own linac. We have broad and deep experience with linac-based stereotactic radiosurgery. We needed our ablative platform to have the following features:
- Able to treat the entire body
- Was not just a linac with added SRS capability
- Minimize clinical overlap and cannibalization of our existing linacs
- Have marketing cachet and bring in self-referred patients
- Technology with regional market distinction

CLINICAL HISTORY:
WHO/WHERE
ABOUT EPIC CARE
TECHNOLOGY SOLUTIONS
CHALLENGE

Treatment plan isodoses
Beam geometry for CyberKnife
Position
Padding
Breathing
CT Resolution
Position
Padding
Breathing
CT Resolution
Position
Padding
Breathing
CT Resolution
TREATMENT PLANNING AND DELIVERY:
Patient was positioned for treatment supine, arms down with head support and lying on a thick foam pad, which reduced her discomfort from arthritis pain. Treatment was delivered with the patient comfortably free breathing without need for breath-hold or gating techniques.
- 33 robotically delivered non-coplanar beams
- The tumor was tracked during treatment to ensure accuracy using Synchrony®
- 34 Gy delivered in one fraction
- Patient reported no side effects

Patient in treatment position
Important Safety Information
Most side effects of radiotherapy, including radiotherapy delivered with Accuray systems, are mild and temporary, often involving fatigue, nausea, and skin irritation. Side effects can be severe, however, leading to pain, alterations in normal body functions (for example, urinary or salivary function), deterioration of quality of life, permanent injury, and even death. Side effects can occur during or shortly after radiation treatment or in the months and years following radiation. The nature and severity of side effects depend on many factors, including the size and location of the treated tumor, the treatment technique (for example, the radiation dose), and the patient’s general medical condition, to name a few. For more details about the side effects of your radiation therapy, and to see if treatment with an Accuray product is right for you, ask your doctor. Accuray Incorporated as a medical device manufacturer cannot and does not recommend specific treatment approaches. Individual results may vary.