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本文对４８例罹患急性肺水肿的体力劳动者，进入特高海拔区前（２８００ｍ）后（４８００ｍ）的胸部后前位片，测量心血管四项指标并观察肺部改变进行自身对照分析。结果表明：心脏横径、肺动脉段突度、肺动脉段基线和右肺动脉降枝横径在快速进入特高海拔地区后５～１７天，无明显变化（Ｘ值检验Ｐ＞０．０５）。肺部改变的典型征象为：肺门结构、肺野纹理和心脏边缘的“三模糊征”及“面纱征”，可作为判定急性反应的可靠指标。同时提出，叶间胸膜显影，同心缘模糊或呈锯齿状改变一样，是间质性肺水肿和发生于浆膜的组织液外渗共同作用的结果。
In this paper, 48 cases of acute pulmonary edema in physical workers, into the extra-high altitude area (2800m) (4800m) after the anterior chest film, measuring four indicators of cardiovascular and lung changes observed by self-control analysis. The results showed that there was no significant change in heart diameter, pulmonary artery segment, pulmonary artery segment baseline, and right pulmonary artery descending diameter at 5-17 days after rapid entry into the extra-high altitude region (P> 0.05). The typical signs of lung changes are: “hilar syndrome” and “veil sign” in the hilar structure, lung field texture and the edge of the heart can be used as a reliable indicator of acute response. At the same time, follicular pleural development, concentric fuzzy or jagged change is the same interstitial pulmonary edema and interstitial fluid occurs in the serosal fluid extravasation results.