Patient Forum

The CyberKnife Patient Forum is designed to provide a place for people who have been diagnosed with cancer, their family and friends, to exchange useful information and provide support to one another. The Forum may also help people find answers to questions they have about the CyberKnife treatment experience. Accuray strives to facilitate these exchanges and encourage discussions. Recently we have experienced some aggressive or inappropriate spam postings. We are diligently working to resolve this issue and thank you in advance for your patience.

Birgit Fleurent, Chief Marketing Officer, Accuray Incorporated

Had cyberknife. Still rapidly growing. What should dose be for liver?
Online Forums
Posted: Friday, July 04, 2014 9:35 AM
Joined: 7/4/2014
Posts: 4

Had Cyberknife twice on various liver tumours over past year at a Cyberknife clinic in Europe.

Still rapidly growing. I was given a total dose of 45 rads to each tumour. 15 rads over 3 days.

Is this enough. What should be the total number of rads used for each liver tumour?

Also is it more effective to give 45 rads in one go rather than split it up over 3 days. Surely one big dose in one go is more effective. Apparently that's what they do in American Cyberknife clinics. Give 50 rads in one go because it is more effective.

Thank you for your advice.

Posted: Friday, July 04, 2014 4:24 PM
Joined: 10/10/2008
Posts: 4435

That is usually a sufficient dose, but treatment is not always effective. It works about 70-90% of the time. You can't tolerably give 45 Gy in a single fraction. And they don't give 50 GY in on treatment to the liver using the CK in America


Clinton A. Medbery, III, M.D.
St. Anthony Hospital Cyberknife Center
(405) 272-7311

Mail to:
Clinton A. Medbery, III, M.D.
Southwest Radiation Oncology
1011 N. Dewey Ave. #101
Oklahoma City, OK 73102



Jump to different Forum...