Has anyone had a CT Scan? Also, know about CT Scan machines.. I am scheduled to have a scan with contrast on Friday. The machine is a 16 slice which is older. Some facilities have a 64 slice scanner which means it takes a better picture and is easier on you. The place that has the 16 slice CT has asked me to drink contrast solution. I see on the internet, with the 64 slice, they only mention a IV contrast. I have alot of digestive problems and do not want to drink the contrast solution if possible. Does anyone know about this?