Chu Z, et al. - In carotid artery stenosis (CAS) patients, researchers retrospectively examined the possible relationship between carotid artery calcification score (CS) and cognitive impairment. Using Color Doppler ultrasound, multi-detector row spiral CT angiography and MRI scanning, carotid artery was measured in 102 patients with cervical carotid arteries. A significant correlation was found between carotid artery CSs and cognitive scores, making CS a possible risk factor for early screening of cognitive impairment in CAS patients. The possible mechanism could be linked to the effect of the calcification on the plaque burden.