The impact of COVID-19 quarantine efforts on emergency radiology and trauma cases

Amidst COVID-19 pandemic, many states have issued stay at home advisories and non-essential business closures to limit public exposure. During this "quarantine" period, it is important to understand the volume and types of emergency/trauma radiology cases to better prepare for the continuing and future pandemics. This study demonstrates new trends in pathologies and an overall increase in positive exams.

A retrospective review of emergency department's imaging during the initial two weeks of this state's quarantine period, 3/23/2020-4/5/2020 was compared to similar dates of the previous year ("pre-quarantine" period), 3/25/2019-4/7/2019. One thousand emergency radiology and 991 trauma cases were evaluated. Of the emergency radiology cases 500 studies from each period were assessed, and from the trauma cases, 783 cases from pre-quarantine and 315 from the quarantine period were examined. Chi-square analysis was performed to assess for statistical significance.

Overall there were 43.0% fewer emergency radiology studies performed during the quarantine period (n = 4530) compared to pre-quarantine period (n = 2585). Additionally, the number of positive cases was significantly higher (P = 0.0001) during the quarantine period (43.0%) compared to the pre-quarantine period (30.2%). Several trends in types of trauma were observed, including a significant increase in domestic violence during the quarantine period (P = 0.0081).

Different volumes and types of emergency/trauma imaging cases were observed during the recent quarantine period. Findings may assist emergency radiology departments to plan for future pandemics or COVID-19 resurgences by offering evidence of the types and volume of emergency radiology cases one might expect.