Lung ultrasonography has excellent utility for the diagnosis of various thoracic diseases. It is easy to learn and
has become attractive to intensivist and pulmonary physicians. This section will review key components of lung
The authors note that Dr. Daniel Lichtenstein is responsible for the major developments of lung ultrasonography. He
published a series of landmark studies in 1990’s that defined all of the elements of the field; in addition, he developed the
basic semiology of lung ultrasonography.