超声是临床上常用的重要影像学检查手段之一。肺部疾病的超声诊断虽然早在20世纪50年代已有研究,但未能推广应用。然而,由于肺泡内充满气体,超声波遇到气体时会发生全反射,因此,长期以来对肺部疾病的诊断被认为是超声检查的“禁区”。但近年来,随着认识的提高,这一“禁区”已逐渐被打破,而且技术日益成熟,超声已成为一种重 Ultrasound is one of the most important imaging methods commonly used in clinical practice. Ultrasound diagnosis of pulmonary diseases, although as early as the 1950s have been studied, but failed to promote the application. However, since the alveolar is filled with gas, total reflection of the ultrasound occurs when it encounters gas. Therefore, the diagnosis of lung diseases has long been regarded as “forbidden area ” of ultrasound. However, in recent years, with the improvement of understanding, this “restricted area ” has been gradually broken, and the technology has become increasingly mature, ultrasound has become a heavy