Figure 1From: Loss of alveolar membrane diffusing capacity and pulmonary capillary blood volume in pulmonary arterial hypertensionLung diffusion capacity and its components over time in pulmonary arterial hypertension. Lung diffusing capacity for NO (DLNO) and the alveolar-capillary membrane diffusing capacity (Dm) decreases over time (both pā=ā0.01). Lung capillary blood volume (Vc) tends to increase over time (pā=ā0.07). Conversely, DLCO did not change significantly (pā=ā0.7).Back to article page