الفهرس 
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Abstract
With experience lung ultrasonography can be as useful as chest CT and superior to standard chest X-ray for evaluation of pneumonia and/or adult respiratory distress syndrome [40]. It has moreover the added benefits of ease of use, repeatability, no radiation exposure, and being cheap [40]. Point-of-care ultrasound using a hand-held mobile device enables assessments in various settings not only in emergency department and intensive care unit, but rural healthcare facilities, nursing homes, and aeromedical transport as well.
The aim of the study is to asses the ability of lung ultrasound score to predict mortality.
Our study was conducted on 40 covid 19 patients who were admitted to the critical care department in Beni-Suef university hospital. Lung ultrasound was done on the day of admission and it was repeated after 72 hours. In addition, baseline CT chest and other clinical parameters were done.
Our results showed that baseline LUS and day 4 LUS were significantly higher among non survivors and patients who needed MV.
It also found that baseline LUS could predict need for MV with a cut off value 17 with p value 0.014, AUC 0.707, sensitivity 73% and specificity 66%, while it could predict mortality with a cut off value 17 with p value 0.025, AUC 0.691, sensitivity 70% and specificity 65%.
There was a positive moderate linear correlation between coRad score and LUS with p value 0.001 and r= 0.521, and there was a negative linear moderate correlation between LUS and po2/fio2 ratio with p value 0.001 and r = - 0.426.
Finally, there was no association between mortality and other different baseline parameters like LDH, TLC, D-dimer, coRad score and ferritin except for CRP with p value 0.035 and po2/fio2 ratio with p value 0.016.