Imaging whole-brain cytoarchitecture of mouse with MRI-based quantitative susceptibility mapping.

ABSTRACT: The proper microstructural arrangement of complex neural structures is essential for establishing the functional circuitry of the brain. We present an MRI method to resolve tissue microstructure and infer brain cytoarchitecture by mapping the magnetic susceptibility in the brain at high resolution. This is possible because of the heterogeneous magnetic susceptibility created by varying concentrations of lipids, proteins and irons from the cell membrane to cytoplasm. We demonstrate magnetic susceptibility maps at a nominal resolution of 10-μm isotropic, approaching the average cell size of a mouse brain. The maps reveal many detailed structures including the retina cell layers, olfactory sensory neurons, barrel cortex, cortical layers, axonal fibers in white and gray matter. Olfactory glome

SUBMITTER: Wei H 

PROVIDER: S-EPMC5201162 | biostudies-literature | 2016 Aug

REPOSITORIES: biostudies-literature