Fig 3.

Volumes for each of three sets of differentiated radiology studies, specifically emergency, outpatient, and inpatient studies, are depicted in this graph showing aggregated data from six academic medical systems (AMSs). The volume is measured against the prior year’s matched-period volume as a result of the coronavirus disease 2019 pandemic for emergency (dashed line), inpatient (dotted line), and outpatient (solid line) imaging studies. The greatest drop in volume was for outpatient studies, and the lowest drop in volume was for the inpatient studies. Both outpatient and inpatients studies demonstrated more rapid recovery slopes toward baseline than the emergency studies, which showed the slowest rate of return toward baseline.