Abstract: For medical devices that apply radiation or other energy to patients, the way in which those devices are used may be analyzed to determine whether human factors are contributing to unnecessary doses of radiation, or to unnecessary wear-and-tear on the equipment. Medical equipment that applies energy to patients may leave a log, indicating who was operating the equipment and what protocols were used during the operation. The facility that owns the equipment may also have records, such as billing records or other institutional records. The equipment's logs, as well as the facility's records, may be analyzed in order to determine whether judgment of the technicians operating the equipment, or the physicians on whose orders the equipment is operated, are contributing to higher doses of radiation than necessary. The analysis may be used for regulatory reporting, or to correct human judgment errors, or to reduce use of consumables.