COVID-19 Research Paper Volume 12, Issue 20 pp 19945—19953

Lung ultrasound is a reliable diagnostic technique to predict abnormal CT chest scan and to detect oxygen requirements in COVID-19 pneumonia

Figure 3. (A) LUS to screen for oxygen requirement ≥ 0.5 l/min; (B) CT scan to screen for oxygen requirement ≥ 0.5 l/min.