Farber SH, et al. - Researchers identified an easy alternative method that uses the available radiation dose data from the C-arm to accurately predict physician exposure. A reliable predictor of radiation exposure to the surgeon during percutaneous screw placement in minimally invasive spinal fusion surgery was intra-operative radiation exposure to the patient, which is easily identifiable as a continuously updated fluoroscopic monitor. Hence it can provide an estimate of exposure without the use of a dosimeter. With this, the magnitude of their exposure can be better understood by a surgeon on a case-by-case basis rather than on a quarterly basis, or more likely, not at all.