Islam M S, Ulmer W T
Dtsch Med Wochenschr. 1977 Aug 19;102(33):1187-90. doi: 10.1055/s-0028-1106724.
Whole-body plethysmography for measuring airway resistance and intrathoracic gas volume is a valuable tool for diagnosing pulmonary and airway functions. It is desirable to know momentary airway resistance in the course of a forced expiration and vital capacity in relation to predicted and actual thoracic gas volume as well as predicted and actual total capacity. This is a reliable means of discovering limitations of lung ventilation despite normal airway resistance during normal ventilation. With a computer and plotter attached to a whole-body plethysmograph such volume-airway resistance curves can be rapidly and well reproduced without stressing the test person. In addition, it also makes it possible to measure routinely the volume resistance breaking point (largely comparable to "closing capacity") even in ill patients.
用于测量气道阻力和胸腔内气体容积的全身体积描记法是诊断肺和气道功能的一项重要工具。了解用力呼气过程中的瞬间气道阻力以及与预测和实际胸腔气体容积以及预测和实际总容积相关的肺活量是很有必要的。这是一种可靠的方法，即使在正常通气时气道阻力正常，也能发现肺通气的局限性。通过将计算机和绘图仪连接到全身体积描记仪上，这样的容积-气道阻力曲线可以快速且良好地重现，而不会给测试者带来压力。此外，即使对于患病患者，它也使得常规测量容积阻力断点（在很大程度上与“闭合容量”相当）成为可能。
