Curiosity is good - you really have to be your own advocate.

The actual recommended NCCN oncology pratice guidelines only call for an annual chest x-ray. This is a matter of controversy. Some here have PET/CT's every 4 months. At the CCC I go to they recommend an annual MRI.

I asked the RO last week about the annual chest x-ray and whether a spiral CT would be better and she stated that although the spiral CT produces "an exquisite image" she didn't feel that it was necessary - she even doubted the need for an annual chest x-ray based on my years of being a non-smoker. She is listed in the Castle book of the top doctors in the US and the highest rated IMRT RO (and clinical radiotherapy professor) at the seventh highest rated CCC so I tend to respect her credibility and I trust what she says.

If you knew me you would know that because of my many years in the medical industry, particularly radiological, I question the heck out of my doctors.