Fig. 5From: Cerebral perfusion variance in new daily persistent headache and chronic migraine: an arterial spin-labeled MR imaging studyCorrelation analysis between cerebral perfusion parameters and clinical variables in brain regions with significant differences of NDPH. The aCBV of the right inferior frontal gyrus pars orbitalis (IFGorb.R) was positively correlated with the GAD-7 score (A). The CBF of the right thalamus, ventral anterior nucleus (tVA.R) was positively correlated with disease duration (B), as well as the aCBV of tVA.R (C). NDPH new daily persistent headache, aCBV arterial cerebral blood volume, CBF cerebral blood flow, GAD-7 Generalized Anxiety Disorder-7Back to article page