According to an open-access article published in ARRS' American Journal of Roentgenology (AJR), lung ultrasound (US) was highly sensitive for detecting abnormalities in patients with coronavirus disease (COVID-19), with B-lines, a thickened pleural line, and pulmonary consolidation the most commonly observed features.

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"In addition," concluded Yao Zhang of at China's Beijing Ditan Hospital, "our results indicate that lung US findings can be used to reflect both the infection duration and disease severity."

From March 3 to March 30, 2020, Zhang and colleagues performed lung US on consecutive patients with positive reverse transcriptase polymerase chain reaction (RTPCR) test results for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), using the Fisher exact test to compare the percentages of patients with each US finding between groups with different symptom durations and disease severity.