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Abstract
The static analysis of a combination of sonographic artifacts and real images makes accurate diagnosis of many lung disorders possible. And Ultrasonography allows immediate diagnosis of pleural effusion, pneumothorax, pulmonary embolism, pneumonia, as well as rib fracture, helps in staging of lung cancer, and it provides a basis for further diagnostic-and treatment-related decisions. Appropriate training on chest ultrasonography is needed to ensure proper application and interpretation of this technique .While application of ultrasound for the detection of pleural and peripheral lung lesions is well established, the sonographic assessment of the lung parenchyma is relatively new. Nevertheless, there are some limitations to the use of chest ultrasonography including subcutaneous emphysema deeper lung disorders, obesity, and operator dependency