Abstract: This study discussed high-resolution magnetic resonance imaging (MRI) 3D to determine the location of carotid plaque and predict stroke. 68 patients with ischemic stroke (observation group) were selected, and 50 healthy persons were selected as the control group, the high resolution MRI 3D black blood technique was performed, the differences of technical parameters of black blood between the two groups were analyzed, and ROC curve analysis parameters were used to predict the value of stroke. A total of 82 carotid atherosclerotic plaques were detected. The carotid plaque detection rate of high-resolution MRI 3D black blood technique was 95.12%. The total area of carotid blood vessels (TVA), tube wall area (WA), and tube wall standardization index (NWI) were significantly higher than those in the control group (P<0.05). The ischemic side TVA was significantly higher than the non-ischemic side (P<0.05). TVA, WA and NWI predict stroke under the ROC curve areas of 0.801, 0.825, and 0.842, respectively P<0.05. High-resolution MRI 3D black blood technology has good value in determining the carotid plaque location, The carotid artery quantitative index has a certain application value in the prediction of stroke.

Key words: high resolution magnetic resonance imaging, black blood technique, carotid plaque, stroke