An ontology-based segmentation scheme for tracking postnatal changes in the developing rodent brain with MRI

► We present the first magnetic resonance histology atlas of the developing rat brain. ► The atlas comprises 9 postnatal time points, 8 contrasts and 26 labeled structures. ► We analyzed regional growth and variability throughout postnatal development. ► The atlas is a quantitative database for studying developmental neuropathology.