A breakthrough in tracking technology, Accuray introduces the Xsight^® tracking system. The Xsight System is the only system that uses internal anatomy to directly track targets with radiosurgery accuracy and precision, decreasing the need of external frames or implanted fiducials.

Sub-millimeter accuracy with no fiducials
Accuray’s Xsight Spine Tracking System reduces the need for surgical implantation of radiographic markers, or fiducials, in the delivery of spine radiosurgery treatments. The Xsight System registers unique non-rigid and bony anatomy landmarks to track, detect and correct for movement of the spine in real-time throughout the treatment.

A comprehensive tracking system
A truly easy to use, non-invasive system, the Xsight System provides a highly accurate, comfortable alternative for patients and facilitates faster, less complex treatments for clinicians. The Xsight System uses advanced image-registration to automatically track lesions or targets in or near spinal structures. This tracking innovation enables neurosurgeons, radiation oncologists and medical physicists to easily treat cancerous and benign tumors without implanting fiducials.

Fully integrated with the CyberKnife^® Robotic Radiosurgery System, the Xsight System tracks lesions throughout the entire spinal region including cervical, thoracic, lumbar and sacral tumors accounting for the non-rigid nature of the spine. In addition, the Xsight System offers an array of robust clinical benefits:

• Intelligently tracks, detects, and corrects with continual image guidance throughout the treatment
• Automatically corrects for even the slightest patient or target movement
• Provides ultra-fast image 6D registration
• Reduces the need for fiducials and frames
• Enables increased spinal reach including cervical, thoracic, lumbar and sacral
• Delivers Accuray proven sub-millimeter targeting accuracy: mean systemic error of 0.61 +/- 0.27mm; accuracy specification of 0.75mm

Extends the benefits of the CyberKnife^® System to more patients
With the Xsight Spine Tracking System clinicians now have a highly accurate alternative to fiducial implantation–a time-consuming and invasive procedure. In fact, because it is an effective alternative to unnecessary treatment procedures and accelerates clinical processes, the Xsight System enables CyberKnife centers to offer treatment to more patients.

Streamlines clinical processes, the Xsight System intuitively integrates into existing CyberKnife treatment planning and treatment delivery systems–reducing the clinician learning curve and streamlining clinical workflow for improved patient care.

Xsight tracking process for a C-Spine case visible from the treatment delivery user interface