- Workshop presentation
- Open Access
Accelerated phase contrast imaging using compressed sensing with complex difference sparsity
© Kwak et al; licensee BioMed Central Ltd. 2012
- Published: 1 February 2012
- Compress Sense
- Acceleration Rate
- Healthy Adult Subject
- Intermediate Image
- Complex Difference
One of the major limitations of phase contrast imaging is its long scan time. Compressed sensing (CS) has been recently utilized to reduce the scan time in phase contrast MR [1–3]. In this study, we propose an accelerated phase contrast MR approach in which sparsity of the complex difference (CD) image is used as the sparsifying transform to improve image reconstruction.
In a retrospectively under-sampling study, accelerated CS with complex difference sparsity yields accurate flow measurement for acceleration rate of 3 and 5. Further study using a prospective accelerated acquisition in a larger patient cohort is needed to clinically evaluate this technique.
This article is published under license to BioMed Central Ltd. This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.