Non-iterative dixon decomposition of fat and water

Mathews Jacob, Bradley P. Sutton

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We introduce a non-iterative algorithm for the decomposition of fat and water from three point Dixon images. We adapt the harmonic retrieval framework to obtain the magnetic field-map as the common root of two polynomial equations; an algebraic scheme is used to solve for the field-map. To account for pixels with multiple solutions due to model mismatch, we introduce a model order estimation step. Aided by the estimate of the model order, our algorithm provides a set of feasible solutions at these pixels. We then use the prior information of the smoothness of the field-map to choose the correct solution from the set. The proposed algorithm is flexible enough to be applied to arbitrary sampling patterns and any number of metabolites. In contrast to iterative schemes that assume a single solution, the proposed scheme is not prone to ambiguous estimates due to local minima and model mismatch. This makes the algorithm applicable challenging situations, where the magnetic field is very inhomogeneous. We validate the algorithm with both phantom and human data.

Original languageEnglish (US)
Title of host publication2007 4th IEEE International Symposium on Biomedical Imaging
Subtitle of host publicationFrom Nano to Macro - Proceedings
Pages1356-1359
Number of pages4
DOIs
StatePublished - Nov 27 2007
Event2007 4th IEEE International Symposium on Biomedical Imaging: From Nano to Macro; ISBI'07 - Arlington, VA, United States
Duration: Apr 12 2007Apr 15 2007

Publication series

Name2007 4th IEEE International Symposium on Biomedical Imaging: From Nano to Macro - Proceedings

Other

Other2007 4th IEEE International Symposium on Biomedical Imaging: From Nano to Macro; ISBI'07
CountryUnited States
CityArlington, VA
Period4/12/074/15/07

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ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Medicine(all)

Cite this

Jacob, M., & Sutton, B. P. (2007). Non-iterative dixon decomposition of fat and water. In 2007 4th IEEE International Symposium on Biomedical Imaging: From Nano to Macro - Proceedings (pp. 1356-1359). [4193546] (2007 4th IEEE International Symposium on Biomedical Imaging: From Nano to Macro - Proceedings). https://doi.org/10.1109/ISBI.2007.357112