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Background Despite many studies evaluating lung ultrasound (LUS) for coronavirus disease 2019 (COVID-19) prognostication, the generalizability and utility across clinical settings are uncertain. Methods Adults (≥18 years of age) with COVID-19 were enrolled at 2 military hospitals, an emergency department, home visits, and a homeless shelter in the United States, and in a referral hospital in Uganda. Participants had a 12-zone LUS scan performed at time of enrollment and clips were read off-site. The primary outcome was progression to higher level of care after the ultrasound scan. We calculated the cross-validated area under the curve for the validation cohort for individual LUS features. Results We enrolled 191 participants with COVID-19 (57.9% female; median age, 45.0 years [interquartile range, 31.5–58.0 years]). Nine participants clinically deteriorated. The top predictors of worsening disease in the validation cohort measured by cross-validated area under the curve were B-lines (0.88 [95% confidence interval {CI},.87–.90]), discrete B-lines (0.87 [95% CI,.85–.88]), oxygen saturation (0.82 [95%, CI,.81–.84]), and A-lines (0.80 [95% CI,.78–.81]). Conclusions In an international multisite point-of-care ultrasound cohort, LUS parameters had high discriminative accuracy. Ultrasound can be applied toward triage across a wide breadth of care settings during a pandemic. [ABSTRACT FROM AUTHOR]

Background: While point-of-care ultrasound (POCUS) has been used to track worsening COVID-19 disease it is unclear if there are dynamic differences between severity trajectories., Methods: We studied 12-lung zone protocol scans from 244 participants [with repeat scans obtained in 3 days ( N = 114), 7 days ( N = 53), and weekly ( N = 9)] ≥ 18 years of age hospitalized for COVID-19 pneumonia. Differences in mean lung ultrasound (LUS) scores and percent of lung fields with A-lines over time were compared between peak severity levels (as defined by the WHO clinical progression scale) using linear mixed-effects models., Results: Mean LUS scores were elevated by 0.19 ( p = 0.035) and A-lines were present in 14.7% fewer lung fields ( p = 0.02) among those with ICU-level or fatal peak illness compared to less severe hospitalized illness, regardless of duration of illness. There were no differences between severity groups in the trajectories of mean LUS score 0.19 ( p = 0.66) or percent A-lines ( p = 0.40)., Discussion: Our results do not support the use of serial LUS scans to monitor COVID-19 disease progression among hospitalized adults., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2022 Blair, Hwang, Pearce, Fong, Cui, Herrera, Liu, Crainiceanu, Siddharthan, Clark and The CCPSEI Research Team.)

Abdominal pain represents 5% to 7% of all emergency department presentations. Many patients require imaging for diagnosis, and choosing the appropriate imaging modality is a crucial decision point. Modern medicine offers a fantastic array of options including abdominal radiograph, computed tomography, MRI, and ultrasonography, but the plethora of alternatives can be paralyzing. This article introduces the commonly available modalities, discusses the advantages and disadvantages, and presents current recommendations for commonly diagnosed conditions., Competing Interests: Disclosure The authors have nothing to disclose., (Copyright © 2021 Elsevier Inc. All rights reserved.)

We present the case of a 64-year-old man with intussusception of the right ureter as a complication of an underlying transitional cell carcinoma. To our knowledge, this is the first case report that illustrates ureteral intussusception by both multidetector computerized tomography and magnetic resonance imaging. Although ureteral intussusceptions are thought to be associated with benign masses, our comprehensive review of the literature demonstrates that almost half of the cases are associated with underlying malignancy.