MAKE SURE THE OPERATORS OF THE MRI (open or closed) KNOW THAT YOU ARE A CLAUSTROPHOBIC
Don't worry. I suspect even if I forget (and there is not much chance of that), they will figure it out quickly enough
As for choosing where to go... I doubt I'll have any choice. I live in a small city in an isolated area of the country. I suspect the only place that does MRIs is at our hospital.
ML