Chen Z, et al. - Among 15 episodic migraine (EM) patients and 15 normal controls (NC), researchers investigated the altered gray matter perfusion using a 3D volumetric perfusion imaging. As per findings, the neurogenic mechanism in the EM genesis could be explained by the pattern of cerebral hyperperfusion, and the non-invasive 3D pseudo-continuous arterial spin labeling (3D pc-ASL) technique is valuable in providing relevant cerebral perfusion information for the further pathophysiological and neuropsychological study in EM.