An Analysis of the Accuracy of the CyberKnife: A Robotic Frameless Stereotactic Radiosurgical System

Abstract

The frameless, image-guided, second-generation CyberKnife radiosurgery system has a clinically relevant accuracy of 1.1 +/- 0.3 mm when CT slice thicknesses of 1.25 mm are used. CyberKnife precision is comparable to published localization errors in current frame-based radiosurgical systems.