Effect of COVID-19 on computed tomography usage and critical test results in the emergency department: an observational study

Agarwal, Minu; Udare, Amar; Patlas, Michael N.; Ramonas, Milita; Alaref, Amer; Rozenberg, Radu; Ly, Donald L.; Golev, Dmitry; Mascola, Ken; Pol, Christian B. van der

doi:10.9778/cmajo.20200148

Cited by 13 publications

(18 citation statements)

References 31 publications

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“…As such, it is actually possible that we have underestimated the true rate of trauma as we only captured trauma patients who received a CT scan. Other studies have shown similar results with a higher proportion of presenting injuries requiring acute care with more severe injuries [ 13 , 14 ].…”

Section: Discussionsupporting

confidence: 66%

Impact of COVID-19 Pandemic on Trauma CT Imaging

Yao

Shek

et al. 2022

Radiology Research and Practice

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Purpose. The goal of this study was to understand the impact of COVID-19 pandemic and associated lockdown measures on the volume, rate, and type of trauma presenting to the emergency department (ED) by using trauma-initiated CT studies to capture patient data. Materials and Methods. We performed a retrospective observational study comparing patients undergoing CT scans for trauma during the 1st and 2nd lockdown periods compared to corresponding prepandemic months. During two lockdown periods, public places such as restaurants, libraries, parks, and shops across the province were shut down. Government-led messaging advised that people should stay at home and practice social distancing. The rate of trauma-initiated CT scans and the proportion of different types of traumas were compared between time periods. Results. There was no significant difference in overall trauma-initiated CT scans between the prepandemic and pandemic levels. Motor vehicle collision (MVC) cases decreased from 18.2% to 15.6% during the first lockdown period ( p = 0.049) and also reduced from 29.1% to 25.2% during the second lockdown period ( p = 0.013). Trauma from falls increased from 19.1% to 27.5% ( p = 0.036) during the first lockdown, despite no significant change during the 2nd lockdown. Furthermore, the percentage of stab injuries increased from 25.0% to 38.9% while blunt trauma decreased from 68.5% to 54.3% during two lockdowns ( p = 0.015). Conclusion. The total number of trauma-initiated CT scans did not significantly decrease during the lockdown periods. Stabbings and falls increased during lockdown periods while MVCs and blunt trauma decreased.

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Section: Discussionsupporting

confidence: 66%

Impact of COVID-19 Pandemic on Trauma CT Imaging

Yao

Shek

et al. 2022

Radiology Research and Practice

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“…During the pandemic, the number of imaging investigations performed has been increasing dramatically and it will continue to grow due to the persistent symptomatology in Long-COVID patients [47] . AI has numerous potential applications in diagnostic imaging, including image analysis, decision-making, and prognosis prediction [48] ( Figure 6 ) , and has been widely used in the fight against the COVID-19 pandemic [49] , [50] , [51] , [52] .…”

Section: Role Of the Aimentioning

confidence: 99%

Long-COVID diagnosis: From diagnostic to advanced AI-driven models

Cau

Faa

Nardi

et al. 2022

European Journal of Radiology

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SARS-COV 2 is recognized to be responsible for a multi-organ syndrome. In most patients, symptoms are mild. However, in certain subjects, COVID-19 tends to progress more severely. Most of the patients infected with SARS-COV2 fully recovered within some weeks. In a considerable number of patients, like many other viral infections, various long-lasting symptoms have been described, now defined as “long COVID-19 syndrome”. Given the high number of contagious over the world, it is necessary to understand and comprehend this emerging pathology to enable early diagnosis and improve patents outcomes. In this scenario, AI-based models can be applied in long-COVID-19 patients to assist clinicians and at the same time, to reduce the considerable impact on the care and rehabilitation unit. The purpose of this manuscript is to review different aspects of long-COVID-19 syndrome from clinical presentation to diagnosis, highlighting the considerable impact that AI can have.

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“…With the background of CT utilization increasing, several studies have evaluated patterns of CT use during the COVID pandemic, finding a decline in the absolute number of CT orders [ 10 , 15 , 28 – 31 ]. These decreases have been attributed to decreased imaging of lower acuity patients [ 10 ]; however, the data are difficult to interpret given that EDs nationwide experienced a nearly 40% reduction in visit volumes during the early COVID pandemic [ 7 , 32 ].…”

Section: Introductionmentioning

confidence: 99%

Impact of the COVID pandemic on emergency department CT utilization: where do we go from here?

et al. 2022

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Purpose To analyze the impact of the coronavirus disease (COVID) pandemic on emergency department (ED) computed tomography (CT) utilization. Methods A 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). Results Weekly 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). Conclusion These 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. Supplementary Information The online version contains supplementary material available at 10.1007/s10140-022-02071-z.

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Effect of COVID-19 on computed tomography usage and critical test results in the emergency department: an observational study

Cited by 13 publications

References 31 publications

Impact of COVID-19 Pandemic on Trauma CT Imaging

Impact of COVID-19 Pandemic on Trauma CT Imaging

Long-COVID diagnosis: From diagnostic to advanced AI-driven models

Impact of the COVID pandemic on emergency department CT utilization: where do we go from here?

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