Lung Ultrasound and Chest X-Rays: Is there a Reason for a Leader Between the Two?

Abstract Chest X-rays (CXR) is currently the first traditional diagnostic imaging used in patients with acute respiratory symptoms, but clinical lung ultrasound (LUS) bedside has gained increasing importance in the last years. Clinical LUS is defined like an ultrasonography performed at the point-of care from the physician integrated with the patient's physical examination. The use of an integrated LUS at the point of care is safety, not expensive, fast and can shorten the time needed to formulate a diagnosis improving differential diagnosis reduces the time to treatment, decreasing length of stay in ICU compared to conventional approaches and minimizing the number of radiological exams avoiding the exposure to ionizing radiations; moreover, reduce the laboratory tests optimizing the use of financial resources.