The value of hippocampal sub-region imaging features for the diagnosis and severity grading of ASD in children.

Background: Hippocampal structural changes in Autism Spectrum Disorder (ASD) are inconsistent. This study investigates hippocampal subregion changes in ASD patients to reveal intrinsic hippocampal anomalies.

Methods: A retrospective study from Hainan Children's Hospital database (2020-2023) included ASD patients and matched controls.