隔肌功能的测定方法很多，但以往的方法或因仪器昂贵难以普遍开展或因有一定的创伤性病人不易接受，使其应用受限。为此，我们应用超声波测定了11例肺气肿患者在平静呼吸与用力呼吸时的隔肌厚度与隔肌运动幅度，并与8例非呼吸病患者比较，结果如下。临床资料一、病例选择：19例 There are many ways to determine the function of the diaphragm, but the previous methods are not commonly used due to the high cost of the instruments or the unacceptability of certain traumatic patients, which limits their application. To this end, we used ultrasound to determine the septum thickness and septum movement amplitude of 11 patients with emphysema during calm breathing and forced respiration, and compared with 8 non-respiratory patients, the results are as follows. Clinical data A case selection: 19 cases