Connect
← Return to MRIdian Viewray Experience
Discussion
Comment receiving replies
According to the Viewray MRIdian website Mayo does not offer it at any of their sites. For SBRT (Stereotactic Body Radiation Therapy) Mayo uses it as their primary RT option (I think). Did you have only one tumor they treated which required the 4 fiducial markers? Since I have three tumors will I need 12 fiducial markers?? Is the idea to place the markers "around" the tumor or place them "inside" the tumor? It sounds like you received Proton Beam SBRT over 5 treatments at Mayo. The stated margins for PB SBRT are 4-6mm from what I've read about. MRIdian on the other hand has it down to 2mm. The SpaceOAR after a few months gets absorbed by the body. Gee, now that you have 4 fiducial markers inside you the police will be able to identify you if you go wandering off....just like your friend's dog!! At this time my Decipher test score is 0.37 (Low Risk) and am trying to decide on using Active Surveillance or 5 MRIdian treatments. The next PSA test will be in a week and am hoping it will remain at 3. So far have you had any blood in either your urine or semen? I am glad to hear you exercise. I have been working out 3 days/week and walking a mile each time. Thanks, will await your reply.
Replies to "According to the Viewray MRIdian website Mayo does not offer it at any of their sites...."
Also, just a follow on note, Mayo did offer numerous treatment options including Tulsu Pro and surgery. However, after a few months of in-depth research and multiple "second" expert opinions, I settled on SBRT as MY best treatment option. I emphasize MY because everyone has their own decision path. I believe that's the only way you'll feel confident in your decision, FWIW. Best wishes!
Connect
I had a single 1 cm tumor grade 4+3, right side only. Decipher was .69. My RO specifically told me he used a 3mm margin for my targeting plan using Photon Beam SBRT. From my understanding, the fiducial markers are used to better track the whole gland in preparation for and during treatment. They already know the location of the tumor(s) relative to the gland itself. It's like knowing where your house is but needing to zoom out to see your house relative to your neighborhood. Although I've heard that some ROs boost radiation dosing in the tumor regions, mine doesn't prescribe to that theory. As he explained to me, the planning is meticulous to help ensure the prostatic urethra and bladder bulb don't get too "hot." The SpaceOAR moves the rectum far enough away so that's protect by the additional spacing. With the markers now in place, I believe my wife can now locate me with the the iPhone "Find your Phone" app...