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. 2020 Jun 9;15:1325–1334. doi: 10.2147/COPD.S242210

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© 2020 Klooster et al.

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Distribution of collateral ventilation. Percentage of patients with CV_neg or CV_pos compared to the fissure completeness score of the right major fissure, the right upper lobe fissure and the left major fissure. Number of patients: Right Major Fissure: 106; Right Upper Lobe Fissure: 115; Left Major Fissure: 208.

Abbreviations: CV_pos, presence of collateral ventilation; CV_neg, absence of collateral ventilation.