Well, I had it done today. I was a bit concerened because the same radiologist that did it seems to be the same one reading my mri's that other radiologist actually are able see what is wrong on other mris's. Anyway, this guy was great. I did not feel ANY discomfort, he kept me informed thru out the procedure and I was very relieved. No headache so far. Guess I got lucky. I needed a break.