Research progress of diffusion sensitive gradient field encoding schemes in magnetic resonance diffusion tensor imaging

magnetic resonance imaging in dentistry

چکیده ندارد.

Simultaneous magnetic resonance imaging of diffusion anisotropy and diffusion gradient.

The theory of diffusion gradient-weighted MRI (DGWI) is presented in this paper. The Bloch-Torrey equation was modified to include the effect of intravoxel spatial-location variation of water diffusion (diffusion gradient) on MRI signal, in addition to the effect of intravoxel spatial-direction variation of water diffusion (diffusion anisotropy). An analytical solution for a diffusion-encoding ...

Simultaneous magnetic resonance diffusion and pseudo‐diffusion tensor imaging

PURPOSE An emerging topic in diffusion magnetic resonance is imaging blood microcirculation alongside water diffusion using the intravoxel incoherent motion (IVIM) model. Recently, a combined IVIM diffusion tensor imaging (IVIM-DTI) model was proposed, which accounts for both anisotropic pseudo-diffusion due to blood microcirculation and anisotropic diffusion due to tissue microstructures. In t...

Combined Functional Magnetic Resonance Imaging and Diffusion Tensor Imaging in

Optimized diffusion tensor encoding schemes with anisotropic diffusion weighting

J. Lee, A. L. Alexander Medical Physics, University of Wisconsin, Madison, WI, United States Background/Introduction Diffusion tensor MRI and the associated measures, such as FA, trace {D}, and eigenvector direction, are highly sensitive to image measurement noise. The main strategy to decrease noise sensitivity is to employ uniformly distributed diffusion encoding directions with a diffusion-w...