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肺导纳图是近年出现的新技术。本文报道肺导纳图与肺阻抗图对肺气肿、肺心病患者诊断价值的对比研究。表明:肺导纳图法能同肺阻抗图法一样,对慢性肺心病和肺气肿具有一定的辅助诊断价值。并较肺阻抗图法有着明显的优点;对于胸部基础阻抗 z_0异常的病人,用肺导纳图法测量肺血流比用肺阻抗图法测量要好一些。
Pulmonary admittance map is a new technology emerging in recent years. This article reports the lung admittance map and lung impedance map of emphysema, pulmonary heart disease in patients with diagnostic value of comparative study. The results showed that the method of pulmonary admittance diagram can be used to diagnose chronic pulmonary heart disease and emphysema as well as pulmonary impedance map method. Compared with the lung impedance map method has obvious advantages; for patients with abnormal chest impedance z_0, lung admittance map method to measure the lung blood flow than lung impedance map measurement is better.