Variability in Study Withdrawal Rates Among Academic Neuroradiologists Participating in a Radiology Utilization Management Program

Variability in withdrawal rates was related to cases in which referring physicians were asked not to perform studies; there was little variation when referring physicians were asked to change studies. These data imply agreement among the neuroradiologists regarding appropriateness of rule sets but suggest that personality characteristics such as persuasiveness, persistence, and desire for conflict avoidance may play an important role in outcomes.