Fig. 4From: Patterns of brain structural alteration in COPD with different levels of pulmonary function impairment and its association with cognitive deficitsCorrelation analyses among MoCA scores, FEV1, and GMD in COPD patients. Abbreviations: MoCA, Montreal Cognitive Assessment; FEV1, forced expiratory volume in 1 s; COPD, chronic obstructive pulmonary disease; R-OPIFG, right orbital part of the inferior frontal gyrus; and L-SFG, left superior frontal gyrusBack to article page