Observational studyEmergency radiology2022
Impact of the COVID pandemic on emergency department CT utilization: where do we go from here?
Observational study in Emergency radiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
11 citing papers in PubMed.
- A Quality Improvement Campaign Reduces Head and Cervical Spine Imaging in Low-risk Trauma Patients.The western journal of emergency medicine · 2026Article
- Navigating the CT wave: multicentric chest imaging trends before, during, and after COVID-19 Pandemic.European radiology · 2026Article
- Diagnostic Radiology Services and Occupational Radiation Anxiety in Kazakhstan.International journal of environmental research and public health · 2025Article
- Thoracic CT Screening in a Population With Unidentified Lung Cancer Risk Factors: Does It Facilitate the Early Diagnosis of Lung Cancer?Canadian respiratory journal · 2025Article
- A tale of two times: an exploration of healthcare utilization patterns before and during COVID-19 in Iran.BMC public health · 2024Article
- Trends in CT examination utilization in the emergency department during and after the COVID-19 pandemic.BMC medical imaging · 2024Article
- Acute care pathway assessed through performance indicators during the COVID-19 pandemic in OECD countries (2020-2021): a scoping review.BMC emergency medicine · 2024Article
- Detection of subsolid nodules on chest CT scans during the COVID-19 pandemic.Jornal brasileiro de pneumologia : publicacao oficial da Sociedade Brasileira de Pneumologia e Tisilogia · 2024Article
- Have Chest Imaging Habits Changed in the Emergency Department after the Pandemic?Tomography (Ann Arbor, Mich.) · 2023Article
- Retrospective Analysis of Subsolid Nodules' Frequency Using Chest Computed Tomography Detection in an Outpatient Population.Tomography (Ann Arbor, Mich.) · 2023Article
- Interpretation of chest radiography in patients with known or suspected SARS-CoV-2 infection: what we learnt from comparison with computed tomography.Emergency radiology · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors.
Funding
Abstract
purposeTo analyze the impact of the coronavirus disease (COVID) pandemic on emergency department (ED) computed tomography (CT) utilization.
methodsA retrospective observational study was conducted assessing seven hospitals' ED imaging volumes between Jan. 6, 2019, and Feb. 27, 2021. Weekly CT utilization is reported as CTs ordered per 100 ED visits. Utilization was ascertained in aggregate and by body area. Interrupted time series analysis was performed to assess significance of utilization change. Prespecified sensitivity analysis was performed for influenza-like or COVID-like illness (ILI/CLI).
resultsWeekly ED CT utilization increased from 35.9 CTs per 100 visits (95% confidence interval [95% CI] 35.8-36.1) to 41.8 per 100 visits (95% CI 41.7-42.0) in pre- and post-pandemic periods. Weekly ED CT chest utilization increased immediately following the pandemic declaration (+ 0.52 chest CTs per 100 ED visits, 95% CI 0.01-1.03, p < 0.05) and compared to pre-pandemic period (+ 0.02 per 100 ED visits, 95% CI 0.02-0.05, p < 0.02). For both CT abdomen/pelvis and CT head, there was neither an immediate effect (+ 0.34 CT-AP per 100 ED visits, 95% CI - 0.74 to 1.44, p = 0.89; - 0.42 CT-H per 100 ED visits, 95% CI - 1.53 to 0.70, p = 0.46) nor a change in weekly CT utilization (+ 0.03 CT-AP per 100 ED visits, 95% CI - 0.01 to 0.05, p = 0.09; + 0.03 CT-H per 100 ED visits, 95% CI - 0.01 to 0.06, p = 0.10).
conclusionThese data may help formulate future strategies for resource utilization and imaging operations as we envision a future with COVID and other federal mandates affecting imaging utilization and appropriateness.
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