Impact of the Coronavirus disease 2019 (COVID-19) pandemic on imaging case volumes
Date
2020Author
Naidich, Jason J.
Boltyenkov, Artem
Wang, Jason J.
Chusid, Jesse
Hughes, Danny
Sanelli, Pina C.
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Abstract
Objective: The coronavirus disease 2019 (COVID-19) pandemic has had significant economic impact on radiology with markedly
decreased imaging case volumes. The purpose of this study was to quantify the imaging volumes during the COVID-19 pandemic across
patient service locations and imaging modality types.
Methods: Imaging case volumes in a large health care system were retrospectively studied, analyzing weekly imaging volumes by patient
service locations (emergency department, inpatient, outpatient) and modality types (x-ray, mammography, CT, MRI, ultrasound,
interventional radiology, nuclear medicine) in years 2020 and 2019. The data set was split to compare pre-COVID-19 (weeks 1-9) and
post-COVID-19 (weeks 10-16) periods. Independent-samples t tests compared the mean weekly volumes in 2020 and 2019.
Results: Total imaging volume in 2020 (weeks 1-16) declined by 12.29% (from 522,645 to 458,438) compared with 2019. PostCOVID-19 (weeks 10-16) revealed a greater decrease (28.10%) in imaging volumes across all patient service locations (range
13.60%-56.59%) and modality types (range 14.22%-58.42%). Total mean weekly volume in 2020 post-COVID-19 (24,383 [95%
confidence interval 19,478-29,288]) was statistically reduced (P ¼ .003) compared with 33,913 [95% confidence interval 33,429-
34,396] in 2019 across all patient service locations and modality types. The greatest decline in 2020 was seen at week 16 specifically for
outpatient imaging (88%) affecting all modality types: mammography (94%), nuclear medicine (85%), MRI (74%), ultrasound (64%),
interventional (56%), CT (46%), and x-ray (22%).
Discussion: Because the duration of the COVID-19 pandemic remains uncertain, these results may assist in guiding short- and longterm practice decisions based on the magnitude of imaging volume decline across different patient service locations and specific imaging
modality types.
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https://doi.org/10.1016/j.jacr.2020.05.004Collections
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