ObjectiveTo explore the value of high-resolution Magnetic resonance imaging (MRI) imaging in predicting the surgical effect of Focal cortical dysplasia (FCD) in children.MethodsThe MRI and clinical data of 143 children with FCD confirmed by surgery and pathology in Qilu Children’s Hospital of Shandong University from July 2013 to July 2018 were analyzed retrospectively, and the MRI signs were analyzed, and the patients were grouped according to different signs to analyze the satisfaction of postoperative epilepsy control in each group.ResultsAmong the 9 groups of children, MRI signs in the group with better postoperative epilepsy control were those with obvious focal gray matter blurring and cortical thickening and combined with Transmantle sign. The MRI signs in the group with poor postoperative results were mild focal gray matter blurring and cortical structure thinning, and those with abnormal sulcus and gyrus morphology, the postoperative effect of patients with only abnormal sulci and gyrus as the main MRI manifestations was significantly better than those with other signs, and the above differences were statistically significant (P<0.05).ConclusionThe high-resolution MRI of children with FCD had a certain specificity, and it is feasible to predict the satisfaction of postoperative epilepsy control from the perspective of MRI signs, which is an important indicator of surgical prognosis.