Journal article
Fat water decomposition using globally optimal surface estimation (GOOSE) algorithm
Magnetic resonance in medicine, Vol.73(3), pp.1289-1299
03/2015
DOI: 10.1002/mrm.25193
PMCID: PMC4411245
PMID: 24604689
Abstract
Purpose\nThis article focuses on developing a novel noniterative fat water decomposition algorithm more robust to fat water swaps and related ambiguities.\nMethods\nField map estimation is reformulated as a constrained surface estimation problem to exploit the spatial smoothness of the field, thus minimizing the ambiguities in the recovery. Specifically, the differences in the field map‐induced frequency shift between adjacent voxels are constrained to be in a finite range. The discretization of the above problem yields a graph optimization scheme, where each node of the graph is only connected with few other nodes. Thanks to the low graph connectivity, the problem is solved efficiently using a noniterative graph cut algorithm. The global minimum of the constrained optimization problem is guaranteed. The performance of the algorithm is compared with that of state‐of‐the‐art schemes. Quantitative comparisons are also made against reference data.\nResults\nThe proposed algorithm is observed to yield more robust fat water estimates with fewer fat water swaps and better quantitative results than other state‐of‐the‐art algorithms in a range of challenging applications.\nConclusion\nThe proposed algorithm is capable of considerably reducing the swaps in challenging fat water decomposition problems. The experiments demonstrate the benefit of using explicit smoothness constraints in field map estimation and solving the problem using a globally convergent graph‐cut optimization algorithm. Magn Reson Med 73:1289–1299, 2015. © 2014 Wiley Periodicals, Inc.
Details
- Title: Subtitle
- Fat water decomposition using globally optimal surface estimation (GOOSE) algorithm
- Creators
- Chen Cui - The University of IowaXiaodong Wu - The University of IowaJohn D Newell - The University of IowaMathews Jacob - The University of Iowa
- Resource Type
- Journal article
- Publication Details
- Magnetic resonance in medicine, Vol.73(3), pp.1289-1299
- DOI
- 10.1002/mrm.25193
- PMID
- 24604689
- PMCID
- PMC4411245
- NLM abbreviation
- Magn Reson Med
- ISSN
- 0740-3194
- eISSN
- 1522-2594
- Number of pages
- 11
- Grant note
- NSF (CCF‐1116067)\nACS (RSG‐11‐267‐01‐CCE)\nNSF (CCF‐0844812)
- Language
- English
- Date published
- 03/2015
- Academic Unit
- Roy J. Carver Department of Biomedical Engineering; Radiology; Electrical and Computer Engineering; Iowa Neuroscience Institute; Radiation Oncology
- Record Identifier
- 9984070308802771
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