矽肺病人的肺部有矽结节形成,纤维性变和结节灶融合等病理变化,可以进而发展为肺气肿和肺心病,影响肺部的血液循环。为了研究这一病变过程中的肺部血液动力学改变,和对心脏功能的影响,最近我们采用了心、肺阻抗血流图描记(简称阻抗图),对106例矽肺病人进行了心室收缩时间间期和心脏指数等项指标的测定。 Silicosis patients with silicosis of the lungs, fibrosis and nodular fusion and other pathological changes, which can further develop emphysema and pulmonary heart disease, affecting the blood circulation in the lungs. In order to study the pulmonary hemodynamic changes during the course of this lesion and their effects on cardiac function, we recently performed heart and lung impedance blood flow mapping (impedance plots) and performed ventricular contractions in 106 patients with silicosis Interphase and cardiac index and other indicators of determination.