Single Encoding Diffusion MRI: A Probe to Brain Anisotropy

From Diffusion MRI to Brain

Reduced-Encoding Imaging of Diffusion Anisotropy

Z-P. Liang, A. H. Poonawalla, D. Hernando, L. Ying, X. J. Zhou Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois, United States, Department of Imaging Physics, University of Texas MD Anderson Cancer Center, Houston, Texas, United States, Department of Electrical Engineering and Computer Science, University of WisconsinMilwaukee, Milw...

Double oscillating diffusion encoding and sensitivity to microscopic anisotropy

PURPOSE To introduce a novel diffusion pulse sequence, namely double oscillating diffusion encoding (DODE), and to investigate whether it adds sensitivity to microscopic diffusion anisotropy (µA) compared to the well-established double diffusion encoding (DDE) methodology. METHODS We simulate measurements from DODE and DDE sequences for different types of microstructures exhibiting restricted...

Diffusion MRI Anisotropy: Modeling, Analysis and Interpretation

The micro-architecture of brain tissue obstructs the movement of diffusing water molecules, causing tissue-dependent, often anisotropic diffusion profiles. In diffusion MRI (dMRI), the relation between brain tissue structure and diffusion anisotropy is studied using oriented diffusion gradients, resulting in tissueand orientation-dependent diffusion-weighted images (DWIs). Over time, various me...

From Diffusion Mri to Brain Connectomics

The success of diffusion MRI is deeply rooted in the fact that during their micrometric random displacements water molecules explore tissue microstructure. Hence by labeling magnetically spins of displaced water, diffusion MRI provides us with exquisite information about the sizes and orientations on the multiple compartments present inside an imaging voxel. Through the causal relation between ...