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. 2009 Oct 29;181(3):218–225. doi: 10.1164/rccm.200908-1189OC

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Figure 2. — The relationship between the pulmonary arterial mean pressure () and (A) the percentage of the area taken up by the cross-sectional area (CSA) of pulmonary vessels smaller than 5 mm² (%CSA_<5), and (B) the percentage of the area taken up by the CSA of pulmonary vessels between 5 mm² and 10 mm² (%CSA_5–10). has a significant negative correlation with %CSA_<5 (r = −0.512, P < 0.0001), whereas there is no significant correlation between and %CSA_5–10 (r = −0.196, P = 0.083).

Inline graphic — The relationship between the pulmonary arterial mean pressure () and (A) the percentage of the area taken up by the cross-sectional area (CSA) of pulmonary vessels smaller than 5 mm² (%CSA_<5), and (B) the percentage of the area taken up by the CSA of pulmonary vessels between 5 mm² and 10 mm² (%CSA_5–10). has a significant negative correlation with %CSA_<5 (r = −0.512, P < 0.0001), whereas there is no significant correlation between and %CSA_5–10 (r = −0.196, P = 0.083).