Constraining the initial phase in water-fat separation |
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| Authors: | Bydder Mark Yokoo Takeshi Yu Huanzhou Carl Michael Reeder Scott B Sirlin Claude B |
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| Affiliation: | a Department of Radiology, University of California San Diego, San Diego, CA, USAb Global Applied Science Lab, GE Healthcare, Menlo Park, CA, USAc Departments of Radiology, Medical Physics, Biomedical Engineering, and Medicine, University of Wisconsin, Madison, WI, USA |
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| Abstract: | An algorithm is described for use in chemical shift-based water-fat separation to constrain the phase of both species to be equal at an echo time of zero. This constraint is physically reasonable since the initial phase should be a property of the excitation pulse and receiver coil only. The advantages of phase constrained water-fat separation, namely, improved noise performance and/or reduced data requirements (fewer echos), are demonstrated in simulations and experiments. |
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| Keywords: | Water-fat separation Dixon Chemical shift Phase |
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