We are currently tracking opiate usage by frequent flyers, to protect them from harm. A CT scan has 150-1100x the radiation dosage of a standard x-ray. Yet, we are handing them out like candy to frequent flyers. I'm thinking of your chronic, abdominal pain pt, often a young or middle aged woman. They get repeated CT scans, often as defensive medicine, not sound holistic practice.
A kid bumps his head and he gets a CT. A guy falls and twists his back, and off to CT. I think they are over used, and the population that runs to the ER for every little bump, bruise, or stomach ache is getting over-exposed to radiation.
I think this is irresponsible medicine, but unfortunately, providers are forced to cover their behinds, and the public expects CTs and doesn't realize the dangers. And, they are a nice, fat billable charge for the hospital too.