Journal of the American College of Radiology : JACR
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Meta Analysis
Coronavirus Disease 2019 (COVID-19) CT Findings: A Systematic Review and Meta-analysis.
To date, considerable knowledge gaps remain regarding the chest CT imaging features of coronavirus disease 2019 (COVID-19). We performed a systematic review and meta-analysis of results from published studies to date to provide a summary of evidence on detection of COVID-19 by chest CT and the expected CT imaging manifestations. ⋯ The detection of COVID-19 chest CT imaging is very high among symptomatic individuals at high risk, especially using thin-section chest CT. The most common CT features in patients affected by COVID-19 included ground glass opacities and consolidation involving the bilateral lungs in a peripheral distribution.
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Meta Analysis
Turf wars in radiology: updated evidence on the relationship between self-referral and the overutilization of imaging.
In a previous article in this series, published in 2004, the authors reviewed the medical literature for evidence on the relationship between self-referral and the utilization of imaging. That evidence demonstrated that self-referral led to substantially higher levels of utilization with its attendant increases in cost and the exposure of patients to unnecessary radiation. ⋯ Once again, the evidence clearly indicates that self-referral results in the overutilization of imaging. Because radiologists have an important stake in the matter, it behooves them to be familiar with this recent evidence so they can bring it to the attention of policymakers in their areas.