Medical Center Assessment Surveys

Health Partners will survey several key personnel from each site (a technologist, a radiologist, etc.) to understand hospital infrastructure, policies, and culture towards dose reduction.


  • Hospitals are randomized to intervention start date.
  • Two-phased stepped wedge design
  • All hospitals are in the control group during the first 12 months , then phased in to each of two interventions.
    • Hospitals are randomized to intervention start date.
  • Two interventions will be compared against no intervention:
    • Simple audit vs. multicomponent intensive intervention

Final Analyses

Combines survey data of hospital factors with site dose trends over time

Will assess:

  • What hospital-level factors are facilitators or barriers
  • Which intervention techniques, if any, contributed to dose optimization