I agree with LostMiler...Andrew had his first CT scan last week. His annual appointment was about a month ago and at that time he had his annual x-ray. That x-ray did not show any problems. However, his pfts were down and he had been coughing alot. So, his doctor admitted him to treat his pseudomonas. While we were in the hospital his cultures came back growing mycobacterium abscessus. So, after his three weeks of ivs for pseudo, we went back to clinic for follow up and had a ct scan before the picc was pulled.
Well, the myco showed up throughout his lungs. The doctors said that with the amount of infection present, it must have been growing for months at least. Yet, three weeks earlier his x-rays showed no problems aside from his baseline bronchiectasis. Oh, and the CT scan showed more progressed bronchiectasis as well.
So, there is no doubt that a CT scan is a much better diagnostic tool. The question is, do you take the risk vs. the benefit? I can honestly say, even going through all of this now, that I would rather use a CT scan sparingly than subject Andrew to that much radiation on a routine basis. It's like bronchoscopies. They are a much better diagnostic tool than a throat culture, but should not be done routinely do to the risks.