Chiari type-1 brain scan (IMAGE) Washington University School of Medicine Caption An MRI scan shows a Chiari type-1 malformation, in which the cerebellum extends beyond the gap in the skull where it connects to the spinal cord. Researchers at Washington University School of Medicine in St. Louis have used AI tools to describe three sub-types of Chiari type-1, which will help guide clinicians to make the most effective treatment decisions for their patients. Credit WashU Pediatric Neurosurgery Usage Restrictions This image is to be used in accordance with the mission, policies and guidelines of Washington University in St. Louis. Visit https://wustl.edu/about/compliance-policies/media-policies/multimedia-use/ for more information. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.