Glad to help.
Ok, here is the low-down on the Boston area radio options for AN's.....
MGH: FSR (I believe Novalis) and Proton Beam.
Tufts: Gammaknife (as you note)
Beth Israel: Cyberknife
Brigham/Womans: Novalis and has Cyberknife purchase requisition in process
Providence: RI (Dr. Noren) Gammaknife
I know many here that had "FSR" at MGH (jcinma is first to come to mind) and I do know of BostonJake (on this site) that had the Proton Beam.
Tufts, I do not personally know of anyone that had AN GK treatment there but maybe they can give you patient references for you to speak on the phone.
BI, well.... I'm kinda keen on them, but with good reason.
B/W: Great Novalis team there (I have met with the radio-team there and side note: my surgeon, Dr. Peter Black, is based there, working in conjunction with my BI team).
Providence (Dr. Noren), a forerunner of GK treatments in this area, also top of the line. ellenvig (on this site) had her treatment with him (I believe) last year.
As to my choice of CK, it boiled down to a few key factors (please note data is available for my own personal reasonings):
1. accuracy of CK and GK are approximately the same, although there is data noted that the CK accuracy may be a hint better (and a small hint at that) since GK requires metal head frame placement, which can cause a slight difference in accuracy. Both accuracies run approx 0.87-0.89mm, although I have heard of the CK treatment option running (at one point) of 0.5mm....just saw that this week and need to find out more about that stat, so not claiming it's 100% accurate as I need to learn more.
2. decision of metal head frame vs. mesh (plastic) mask.... ease of comfort. There is more comfort with the mesh mask... but yet, not what caused my ultimate decision.
3. GK is a one-shot treatment (1 dose) vs. CK being fractionated. There is some talk that while folks appreciate one-shot dose of GK, may be at that point used for AN's that have not much in the way of servicable hearing (most hearing is gone in AN ear). In my particular case, I have most of my hearing (over 85%) at the time of my treatment and for me, fractionating the treatment doses gave me terrific odds of keeping my hearing as well as ease of surrounding brain structures to recupe after each fractionated treatment since smaller doses of radiation are "fractioned" over a number of days. Now 1-1/2 yrs out, at last hearing appt, my hearing remains at 100% of what it was at the time of treatment.
Now, of course, you asked about my particular reasons for my choice... and individual results may vary. I know of many that had GK on their AN and doing great. I know of many that had CK on their AN's and also doing great. I know of some that had one or the other and not-so-great, so.... it truly depends on the individual... as does the ultimate choice of what treatment option to choose.
the decision should not be made lightly... it should be done with as much self-education of protocols as possible... as it's up to us to be our best own patient advocate. My reasons for my treatment may not be the same as others.. or completely off course for others and their treatment choice reasons. So, by noting your question directly to me, I answer as it applies to me....
My hope is that others here (hello radio-gang! all forms of radio!) will chime in and share why they chose as they did. Another suggestion is to read the "Radiation/Radio-surgery" discussion forum here. There have been quite a number of these discussions over the past months and maybe thoughts shared there will also help.
the decision making process is so highly personal, so I share with you knowledge and experience from my view/standpoint, but I have faith in you to do all of your fact gathering and make the best decision for you. Remember, never 2nd guess your decision once you make it and follow it through... you have made the best educated decision for you at the time... and that is all that matters.
Not sure if this helped, but noting what worked solely for me... Hang in there... lots to learn but we are all here to help and cheer you on during this process. We truly are in this together.