الفهرس 
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Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS CoV-2) infections (COVID-19) is an emergent respiratory viral disease first reported in China that quickly spread worldwide. Computed tomography (CT) is the routine imaging technique for diagnosis and monitoring of COVID-19 pneumonia. Chest CT has high sensitivity for diagnosis of COVID-19, but is not universally available. The increasing frequency of confirmed COVID-19 cases is striking, and new sensitive diagnostic tools are needed to guide clinical practice. Lung ultrasound (LUS) is an emerging non-invasive bedside technique that is used to diagnose interstitial lung syndrome through evaluation and quantitation of the number of B-lines, pleural irregularities and nodules or consolidations. This study aimed to evaluate the correlation between LUS findings and chest CT in patients confirmed to have (positive (RT-PCR)) or clinically highly suspected of having (dyspnea, fever, GIT symptoms, dry cough, ageusia or anosmia) COVID-19. Our study was carried out upon sixty five (65) patients of both sexes in duration of one year from November 2021. They were selected from those admitted to Isolation Hospital for covid-19 patients and Emergency Department (ED) (in isolation ward) in Tanta University Hospitals for suspect COVID-19 pneumonia. All patients underwent CT chest immediately before admission as part of the ED evaluation route of suspect COVID-19 cases. A chest radiologist reviewed the CT scans, and defined the presence and extent of ground glass opacities (GGO) and consolidation and scored according to CT severity score (CT-SS) into mild, moderate and severe. Bedside LUS was performed within 24 hour from ward admission and CT scanning. The presence, site, and distribution of abnormalities, such as B lines, pleural line thickening, and consolidations were evaluated. Abnormal findings in each scan were graded according to the scoring system (LUSS score). Data were analyzed for 65 patients with COVID-19 (median (range) age 46 (22 to71) years, 69% male) and excellent correlation was found between the lung ultrasound score and CTSS (p<0.001).