I had Cyberknife treatment on one lymph node last October.
No HT involvement.
Prior to that, PSA was 0.7
Three monthly post treatment was 0.4
Six month PSA is 0.3
So the treatment has had some positive effect.
The hospital where I had the Cyberknife does a telephone follow-up at three monthly intervals regarding how I feel; any side-effects and so on but no diagnostics.
There may be at some stage a further scan to ascertain the effectiveness of the treatment, but I don't know (should have asked!)
It's the first that I have heard of follow up treatment, I assumed that you would just get one bite of the cherry.
My local oncologist feels that on balance, I'm likely to get further mets in future but the Cyberknife treatment will have delayed things.