Hi, Karen:
Sorry I didn't see the latest updates to this thread til now. Here's my experience:
I had my CT scan taken the day before I was treated. The fitting of the mask took only minutes and was very easy to deal with. My AN had also grown at an alarming rate leading up to my treatment, so I was glad that the CT scan and planning happened just one day before treatment.
As for the snotty treatment you've received from staff, I can only say that that would likely not happen at Stanford. I've been very impressed with how friendly, efficient and knowledgeable virtually everyone on staff at Stanford have been. (The one exception was a reading radiologist there, a Dr. Scott Atlas, who consistently made huge errors in my MRI reports. But Dr. Chang never relies on those reports; he makes his own measurements from the MRIs.)
Bottom line: If you're not comfortable with the staff at your local facility, get treated somewhere else! One caveat: It's normal to have doubts about getting treated, right up until you climb onto the table. I was scared and doubtful right til the end, but I had an incredibly successful treatment. So don't wait until you feel totally cozy with the idea of getting CK to actually schedule it; that day might never come, but it's not prescient of looming doom, it's just natural fear taking over. Choosing a team you're comfortable with is another matter, however. You have to also consider who you want to deal with for years after treatment, for your followup appointments. This should be as easy as possible for you; you've been through enough already!
Best wishes,
TW