CyberKnife Plans: Brain

Brain Plan

 

This is a patient with lung cancer that spread to the brain.  He had 1 tumor that was treated in one session with CyberKnife.  He tolerated the treatment very well with no side effects and was able to start chemotherapy very shortly after CyberKnife treatment.  The green line represents the dose of radiation that was prescribed and delivered to the patient.  The blue line represents 20% of this dose, showing that there was very minimal radiation received by the surrounding normal brain tissue.

Acoustic Neuroma Plan

This patient has a benign brain tumor called an acoustic neuroma which can cause hearing loss.  Surgery and CyberKnife radiation are 2 options for treatment of these tumors.   This patient chose to undergo CyberKnife and received 3 treatments given every other day over a period of one week.   She had no hearing in the left ear prior to treatment.  She did not have any side effects from the CyberKnife radiation.





 

Meningioma Plan

This is a patient with a meningioma in the brain which is a non-cancerous tumor.  Due due it’s size and location, it would have been difficult to surgically remove.  Therefore, she received CyberKnife radiation (3 sessions given every other day).  The red line above represents the tumor and the orange line is the dose of radiation that was prescribed.  The light blue structure is the brain stem, a part of the brian that is very sensitive to radiation and must be avoided and the green structure is the nerve that controls the vision in the right eye, which is also very sensitive to radiation and must be avoided.  This CyberKnife plan was ideal to deliver the necessary dose of radiation to the tumor while avoiding these 2 critical structures in the brain.

 

 

 


Post Op Brain Plan

This is a patient who had lung cancer that spread to the brain.  She had the brain tumor surgically removed and then needed radiation afterwards to prevent it from growing back.  Instead of radiating the entire brain, she chose to have CyberKnife to the area where the tumor was removed.  She tolerated CyberKnife well with no side effects.