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慢支、肺气肿和肺心病,由于支气管腔狭窄,肺泡腔内压力增加,肺血管受炎症的损害,引起不同程度的血管壁增厚,管腔狭窄,血管阻力增大,血管床减少,肺血流量减少等,这些病人肺血流的变化能否在肺血流图上反映出来,肺血流图检查对这些疾病
Chronic bronchitis, emphysema and pulmonary heart disease, due to bronchial stenosis, increased pressure in the alveolar space, pulmonary vascular damage by inflammation, causing varying degrees of vascular wall thickening, stenosis, vascular resistance increased vascular bed decreased, Pulmonary blood flow reduction, etc., whether changes in pulmonary blood flow in these patients can be reflected in the pulmonary blood flow diagram, pulmonary blood flow chart examination of these diseases