Segmentation (IMAGE) Children's National Hospital Caption This is segmentation of a preterm brain T2-weighted MRI image at 30 gestational weeks. Green is cortical grey matter, blue is white matter, gray is deep grey matter, light blue is the lateral ventricle, purple is the cerebellum, orange is the brainstem, red is the hippocampus, and yellow is cerebrospinal fluid. Children's National MRI Research of the Developing Brain. Credit Children's National Usage Restrictions Please credit Children's National License Licensed 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.