We do need x-rays and will get CT and MRI scans where necessary.
At each exposure, the radiologist and technician record the amount of exposure.
MRI's are not using ionizing radiation but rather magnetic beams. They may image some areas better but, for instance, sinus surgery still requires a CT.
Knowing this, many of you will receive imaging studies at the primary care office, but here is no centralized repository of total lifetime exposure. So, stay on top of it and get imaging studies but question if the information can be gathered in other ways.
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