I recently had to have a brain scan, I wasnt too worried about it, until I got there and they decided they wanted to inject me with dye so more would show up - that I wasnt happy with!!
It is a strange feeling, I am not claustrophobic but it is just a weird feeling being in a scan. Luckily scanning machines have advanced over the years, my bro has a brain tumour which will never be removed and has to have 9 monthly scans and he is very grateful that he now only has to spend a few mins in a scan rather that 40mins like he previously had to!!