I had to google the difference
Thicko generalisation: CT scan very expensive looks for cancer, MRI still expensive looks for tissue damage
That CT scan dye is weird. They warn you that it will make you feel like you've peed yourself and it does a bit. Eventually makes you feel warm and sweaty all over and seeing as how they've made you drink a litre of water before you really do need to rush to the loo asap. They also warn you not to leave the hospital too soon after. Forgot that last time and really did feel bad in the car.
But if they say you need a CT scan, always say yes
