Near misses (also referred to as close calls) represent important opportunities for safety improvement. Using retrospective data from January 1 to December 31, 2019, this study calculated the proportion of wrong-patient imaging orders involving radiation that are intercepted, and those that reached the patient. The researchers estimated an overall rate of 51.5 per 100,000 imaging orders involving wrong-patient orders, with 50 near-miss events for every 1 error that reached the patient.