CyberKnife - Kidney Lesions - Patient Information

Kidney Lesions

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CyberKnife® Radiosurgery:
Precise Ablation of Focal Kidney Lesions
The kidney is another organ that moves with respiration, limiting the accuracy of conventional or even stereotactic radiotherapy approaches against malignant lesions within the kidney itself, resulting in a large fuzzy margin between the high dose and low dose radiotherapy zone. This seriously limits the ability to safely delivery an ablative radiation regimen to a primary kidney lesion, even with sophisticated radiotherapy techniques.

CyberKnife® Synchrony® respiratory tracking system overcomes this problem by locking onto implanted gold fiducial markers that are easily placed within the kidney under CT guidance, and correlates their position with the respiratory cycle as determined by optical tracking, tracking the targeted lesion with 1.5 mm accuracy throughout the entire breathing cycle. This allows a much
smaller applied margin compared with other radiation delivery systems – virtually surgical in its precision.

Gold Fiducial Markers

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Written by Donald B. Fuller, M.D. – Radiation Oncologist

           Central San Diego
           5395 Ruffin Road, Suite 103
           San Diego, CA 92123
           (858) 505-4100
           (800) 470-1256

      North County San Diego
       477 N. El Camino Real, Suite D-101
       Encinitas, CA. 92024
       (760) 230-6706
       (800) 470-1256