Multiecho reconstruction for simultaneous water-fat decomposition and T2* estimation
نویسندگان
چکیده
منابع مشابه
Simultaneous Estimation of Water-T2 and Fat Fraction Using a Single Breath Hold Radial GRASE Method
C. Graff, Z. Li, E. W. Clarkson, C. Huang, A. Bilgin, and M. I. Altbach Program in Applied Mathematics, University of Arizona, Tucson, AZ, United States, Department of Radiology, University of Arizona, Tucson, AZ, United States, Department of Mathematics, University of Arizona, Tucson, AZ, United States, Department of Electrical and Computer Engineering, University of Arizona, Tucson, AZ, Unite...
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PURPOSE This article focuses on developing a novel noniterative fat water decomposition algorithm more robust to fat water swaps and related ambiguities. METHODS Field 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 ...
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Conventional approaches for fat and water discrimination based on chemical-shift fat suppression have reduced ability to characterize fatty infiltration due to poor contrast of microscopic fat. The multiecho Dixon approach to water and fat separation has advantages over chemical-shift fat suppression: 1) water and fat images can be acquired in a single breathhold, avoiding misregistration; 2) f...
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Introduction T2* mapping has been investigated in cardiac MRI for imaging the myocardial BOLD effect [1] and in iron overload assessment [2]. Advanced T2* estimation techniques in the context of chemical shift-based water-fat decomposition have recently been developed for iron detection in organs such as the liver, while simultaneously estimating fat content [3]. Separately, chemical shiftbased...
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ژورنال
عنوان ژورنال: Journal of Magnetic Resonance Imaging
سال: 2007
ISSN: 1053-1807,1522-2586
DOI: 10.1002/jmri.21090