- For Doctors
Expand Treatment Options And Your Practice
With The World’s Most Accurate Radiosurgery Device
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Who is a candidate for CyberKnife?
Treatment Process Overview
Opening the Door to New Treatment
CyberKnife Defines Radiosurgery
The CyberKnife® System from Accuray™ is the world’s most accurate radiosurgery instrument. It establishes a new gold standard in radiosurgery by precisely ablating tumors and other lesions anywhere in the body, with submillimeter Total Clinical Accuracy*.
Using image guidance, robotics, and dynamic respiratory motion tracking, the CyberKnife System delivers superior accuracy and conformality. In fact, as the first device to enable full-body dynamic radiosurgery, the CyberKnife is making possible effective new treatments in clinical areas such as spine, lung, liver, pancreas, pelvic tumors, and prostate.(*Total Clinical Accuracy =
sum of all clinically relevant errors.)
“Treatment with the CyberKnife is really
medicine in the ideal--it involves a true
team collaboration, with the health and
welfare of our patient as its central focus.”
Mark Brenner, M.D.
Chief of Radiation Oncology
Sinai Hospital of Baltimore
HOW DOES THE CYBERKNIFE WORK?
World’s First and Only Full-Body Radiosurgery System
Real-Time Image Guidance Throughout Treatment
Image-guided CyberKnife radiosurgery is non-invasive and 100% frameless. Since treatments can be delivered in single or fractionated sessions, CyberKnife offers optimum protection for adjacent critical structures. Unlike traditional radiosurgery devices, the CyberKnife System tracks internal reference points in the anatomy. In this way, the CyberKnife automatically detects and compensates for patient movement in real time, with updated image guidance at every beam position.
Dynamic Motion Tracking™
The CyberKnife System with the Synchrony™ Respiratory Tracking System is the only radiosurgery technology in the world that tracks tumor position in real time, by synchronizing radiation delivery to the motion of the tumor throughout the respiratory cycle. Accuray’s advanced image-guidance technology locates the tumor while the Synchrony System continuously tracks the patient’s respiratory motion. This 4D tracking capability not only makes treatment with the CyberKnife System significantly more comfortable for patients, but safer, faster, and more accurate as well.
Full-Time Robotics Technology
The CyberKnife utilizes a robotic manipulator to move the system’s compact linear accelerator with six degrees of freedom. With this range of motion the robotic manipulator is capable of positioning the linac to an infinite number of beam positions and orientations, providing treatment flexibility that is unsurpassed in radiosurgery. Such versatility allows both non-isocentric and isocentric treatment of lesions and enables superior conformality.
CyberKnife ® Dynamic 4D Image-Guided Radiosurgery Suite
Compact Linear Accelerator with Express™
The compact X-band linear accelerator emits circular beams with secondary collimation ranging from 5 mm to 60 mm. This compact lightweight system allows for precisely delivered pencil-shaped beams of radiation in almost any direction, providing superior conformality when treating tumors.
The robotic manipulator used by the CyberKnife System is made by Kuka™, one of the leading robot manufacturers in the world. This high-precision robot is capable of delivering a reproducible accuracy of less than 0.2 mm.
The low-energy x-ray sources generate two perpendicular, oblique, diagnostic x-rays that determine the location of bony landmarks or implanted radiopaque markers throughout the entire treatment.
The high-resolution image detectors capture x-ray images and generate digital images of the anatomy. These images, which are taken throughout treatment, are compared to the digitally reconstructed radiographs (DRRs) generated from the CT scans used for treatment planning. The imaging system then determines the patient’s position and sends a command to the robotic manipulator to correct for movement.
AXUM™ Treatment Couch
The AXUM™ Automatic Patient Positioning System automatically and accurately aligns patients in one simple step, significantly reducing patient setup times and increasing patient throughput.
Synchrony™ Respiratory Tracking System
The Synchrony Respiratory Tracking System is the first technology in the world capable of delivering dynamic radiosurgery to targets that move with respiration. The CyberKnife System synchronizes the Robotic Delivery System to the motion of the tumor so margins of less than a millimeter are needed in order to compensate for respiratory motions.
CyberKnife Treatment Planning System
The CyberKnife Treatment Planning System uses inverse and conformal planning techniques, which capitalize on the strengths of the CyberKnife System’s unique treatment delivery model.
CyRIS™ InView™ Image Fusion and Contouring Station
With CyRIS InView, physicians are able to perform fusion, contouring, and dose review in the comfort of their own office or other remote location.