Empirical Inference
Article
2010
Optimization of k-Space Trajectories for Compressed Sensing by Bayesian Experimental Design
The optimization of k-space sampling for nonlinear sparse MRI reconstruction is phrased as a Bayesian experimental design problem. Bayesian inference is approximated by a novel relaxation to standard signal processing primitives, resulting in an efficient optimization algorithm for Cartesian and spiral trajectories. On clinical resolution brain image data from a Siemens 3T scanner, automatically optimized trajectories lead to significantly improved images, compared to standard low-pass, equispaced, or variable density randomized designs. Insights into the nonlinear design optimization problem for MRI are given.
Author(s): | Seeger, M. and Nickisch, H. and Pohmann, R. and Schölkopf, B. |
Journal: | Magnetic Resonance in Medicine |
Volume: | 63 |
Number (issue): | 1 |
Pages: | 116-126 |
Year: | 2010 |
Month: | January |
Day: | 0 |
Bibtex Type: | Article (article) |
DOI: | 10.1002/mrm.22180 |
Digital: | 0 |
Electronic Archiving: | grant_archive |
Language: | en |
Organization: | Max-Planck-Gesellschaft |
School: | Biologische Kybernetik |
Links: |
BibTex
@article{6039, title = {Optimization of k-Space Trajectories for Compressed Sensing by Bayesian Experimental Design}, journal = {Magnetic Resonance in Medicine}, abstract = {The optimization of k-space sampling for nonlinear sparse MRI reconstruction is phrased as a Bayesian experimental design problem. Bayesian inference is approximated by a novel relaxation to standard signal processing primitives, resulting in an efficient optimization algorithm for Cartesian and spiral trajectories. On clinical resolution brain image data from a Siemens 3T scanner, automatically optimized trajectories lead to significantly improved images, compared to standard low-pass, equispaced, or variable density randomized designs. Insights into the nonlinear design optimization problem for MRI are given.}, volume = {63}, number = {1}, pages = {116-126}, organization = {Max-Planck-Gesellschaft}, school = {Biologische Kybernetik}, month = jan, year = {2010}, slug = {6039}, author = {Seeger, M. and Nickisch, H. and Pohmann, R. and Sch{\"o}lkopf, B.}, month_numeric = {1} }