Kidney Lesions
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CyberKnife® Radiosurgery
Targeting Angles
Traditional radiotherapy systems target the lesion from a relatively small number of fixed positions. In contrast the CyberKnife® device allows literally hundreds of targeting angles to be selected, increasing the ability to conform the ablative dose to the target lesion within the kidney, while better sparing the adjacent kidney and surrounding normal gastrointestinal tissues.
The accuracy of this model has been validated in a study of pig kidneys, in live animals treated with CyberKnife® radiosurgery, whose kidneys were then evaluated pathologically, revealing total destruction of all cellular elements within the focally targeted zone by 8 weeks post-treatment, with preserved kidney tissue adjacent to the sharply marginated target zone annihilation.
Dose Margin with Conventional Radiotherapy
CyberKnife® Targeting Angles
Written by Donald B. Fuller, M.D. – Radiation Oncologist