Bachofen H, Voegeli E, Siegrist H R
Rofo. 1976 Oct;125(4):325-9. doi: 10.1055/s-0029-1230470.
Changes in pulmonary blood flow as see on chest radiographs have assumed considerable importance recently in the evaluation of left ventricular insufficiency. In order to study the results of poor radiographs on the evaluation of pulmonary haemodynamics, blood-flow patterns were studied in 39 individuals of various ages during normal inspiration, during the Valsalva manoeuvre and during expiration. All had normal lungs. The results indicate that changes in blood-flow patterns and loss of marginal definition of basal vessels are unreliable signs of left-sided insufficiency in old patients or in unco-operative patients, in the presence of a high diaphragm and in the supine position.
胸部X光片上显示的肺血流变化近来在评估左心室功能不全方面具有相当重要的意义。为了研究质量欠佳的X光片对肺血流动力学评估结果的影响，我们对39名不同年龄段的个体在正常吸气、瓦尔萨尔瓦动作及呼气过程中的血流模式进行了研究。所有受试者肺部均正常。结果表明，血流模式的变化以及肺底部血管边缘清晰度的丧失，对于老年患者、不配合的患者、存在高位膈肌的患者以及仰卧位患者而言，并不是左侧功能不全的可靠指征。
