Benzer H, Fitzal S, Geyer A, Goldschmied W, Haider W, Pauser G, Polzer K, Schuhfried F
Anaesthesist. 1977 Sep;26(9):534-42.
Electrical conductivity changes are measured with rheography. Changes of conductivity on the thorax caused by respiration, superimpose and exceed those caused by different circulatory conditions. Therefore rheography was adapted for monitoring of respiration. Changes in electric conductivity can be explained by the inflow of air to the alveoli, by increase of the distance between electrode, and by changes of the intrathoracic blood volume. Rheography developed by Polzer and Schuhfried was tested in the intensive care unit and the respiration therapy department. It was shown that this method is suitable for control of respiration, for demonstrating regional differences of pulmonary ventilation, for checking of respiration therapy and for monitoring the ventilated patient.
通过流变描记法测量电导率变化。呼吸引起的胸部电导率变化叠加并超过了不同循环状况引起的变化。因此，流变描记法适用于呼吸监测。电导率的变化可以通过空气流入肺泡、电极间距离增加以及胸腔内血容量的变化来解释。由波尔泽和舒弗里德研发的流变描记法在重症监护病房和呼吸治疗科进行了测试。结果表明，该方法适用于呼吸控制、显示肺通气的区域差异、检查呼吸治疗以及监测通气患者。
