Posted 2/13/2016 11:08 PM (GMT -6)
Thanks for the well wishes!
0311, the SBRT machine at Mercy is from Varian. The CK machine used at St Louis University is first generation from 2004 when it was initially used for other cancers. The machine I'll be "exposed" to at St Louis Cyberknife is 3rd generation. That said, Dr. Alan Katz, the renowned NYC CK expert, told me via phone consult that the age of the machine is much less important than the experience of the team using it.
I don't think IRIS is the name of the machine; it describes a type of collimator, a device used to vary the size of the photon beam.
Here's my doc's protocol. He'll be using 7.25 Gy per session every other day, with no rectal balloon. Low fiber diet begins 2 days before the first CK session, and I'll stay on that until treatment stops. One Fleet enema an hour before each treatment. Empty bladder upon arrival for each session, then immediately drink 8 oz of water.
He doesn't start Flowmax before the treatment starts, in case it's not needed. He didn't mention starting an ED drug before treatment, so it's presumably not a part of his protocol.