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Final decision on treatment: Viewray or Truebeam?
Prostate Cancer | Last Active: Apr 18 7:04am | Replies (34)Comment receiving replies
Am glad to read about your experience with ViewRay's MRIdian SBRT. I am considering using this 5 treatment option as well. My understanding is it combines a high tech MRI with proton radiation. However, jackm9005 just replied to me saying "I recently had my consultation and was told that protons are not delivered using the Mridian ViewRay, only photons. Has something to do with the magnets in the MRI and protons." So, what did you receive protons or photons? The clear definition I found was "The key difference between the two in terms of radiation therapy: Like an x-ray, photon beams will pass through the body and have an exit point, whereas protons can be stopped in tissue without a significant amount exiting the body." Who wants to have an exit dose of photons passing right thru the prostate and beyond? Hopefully you will tell me you had protons.
What did they use to map you, an MRI scan, a CT scan or a PET scan?
If I have two GL 3+3 and a GL 3+4 do you think all three could be zapped in 5 treatments?
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rockin2047: one of the great benefits of the Mridian is real time MRI mapping and dynamic mapping capabilities. I had an MRI and a CAT scan used for preliminary mapping. They were used as a guideline for the initial set up and the real time Mri in the Mridian was used to finalize the mapping. They did not have to use the dynamic planning capabilities of the Mridian as my body did not move internally or externally in a way that required it but it was there if needed. In other types of cancer, where the organs move more, the dynamic planning capabilities of the MRIDian become more important.