Docket #: S04-305
MRI - MRI: Generalized Image Reconstruction
Disclosed is an effective algorithm to correct motion-induced phase error using an iterative reconstruction. Using a conjugate-gradient (CG) algorithm, the phase error is treated as an image encoding function. Given the complex perturbation terms, diffusion-weighted images can be reconstructed using an augmented sensitivity map. The mathematical formulation and image reconstruction procedures are similar to the SENSE reconstruction. By defining a dynamic composition sensitivity, the CG phase correction method can be conveniently incorporated with SENSE reconstruction for the application of multi-shot SENSE DWI. Effective phase correction and multi-shot SENSE DWI (R=1 to 3) are demonstrated on both simulated and in vivo data acquired with PROPELLER and SNAILS.
Patents
- Published Application: 20070182411
- Issued: 7,408,345 (USA)
Similar Technologies
-
Generalized Multi-Channel MRI Reconstruction using Deep Neural Networks S17-421Generalized Multi-Channel MRI Reconstruction using Deep Neural Networks
-
Multi-dimensional Cardiac Imaging S10-141Multi-dimensional Cardiac Imaging
-
A method for rapid multi-contrast brain imaging S14-295A method for rapid multi-contrast brain imaging