When it comes to radiation safety in medical imaging, the guiding principle is ALARA: “as low as reasonably achievable.” This goes not only for the patients being scanned, but also for the technicians and physicians who are often in the vicinity of the equipment.
Radiation exposure in fluoroscopy equipment like C-arms comes from two main sources- “scatter” radiation that bounces off the patient's body and “leakage” radiation from the X-ray tube. Of the two sources of exposure, scatter radiation varies considerably more and is the higher contributor to overall exposure.
If you're new to the medical imaging field or to radography/fluoroscopy, there are a few things you should know about getting your radiation exposure ALARA. Below are 4 areas to focus on for greater radiation safety: