
Specific absorbtion rate, or SAR is a measure of the energy deposited into the body by an
MRI. This desposited energy results in
tissue heating. Everybody needs their
brain cells warmed up a few degrees, right? A 3T MRI has a shorter scan time and there is less heating of the brain tissue.
So ask which scanner they are going to put you on.
CAT scans are yesterdays technology.
The nausea you experienced is a hallmark of a concusion.