Robust multipoint water-fat separation using fat likelihood analysis
نویسندگان
چکیده
منابع مشابه
Robust Multicoil Reconstruction for Phase-Sensitive Fat-Water Separation
Introduction: Phase-sensitive (PS) SSFP [1,2] is an efficient fat/water separation method, successfully used in several applications including angiography [1], musculoskeletal [3] and abdominal [4] imaging. It generates and detects a 180 phase-difference between fat and water. In previous work, water images reconstructed from individual coils with PSSSFP were combined [4,5]. However, abrupt spa...
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Introduction In MRI, fat can be hard to distinguish visually from pathology or contrast agent, due to its high signal intensity in many imaging sequences. Water and fat separation techniques provide an alternative to conventional fat suppression, and are also of interest in body composition applications. Dixon techniques [1] utilize the property of chemical shift to separate water and fat with ...
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Background Optical imaging may be added to MR mammography to provide absolute concentration images of oxygenated and deoxygenated hemoglobin, water, and other endogenous and exogenous molecular agents. This is beneficial because hemoglobin and tissue oxygenation have been shown in several studies to have high specificity to breast cancer [1]. This combined optical/MR instrument has been shown t...
متن کاملRapid MR imaging of articular cartilage with steady-state free precession and multipoint fat-water separation.
OBJECTIVE To obtain high-quality high-resolution images of articular cartilage with reduced imaging time, we combined a novel technique of generalized multipoint fat-water separation with three-dimensional (3D) steady-state free precession (SSFP) imaging. SUBJECTS AND METHODS The cartilage of 10 knees in five healthy volunteers was imaged with 3D SSFP imaging and a multipoint fat-water separa...
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Water/fat separation is a classical problem for in vivo proton MRI. Although many methods have been proposed to address this problem, robust water/fat separation remains a challenge, especially in the presence of large amplitude of static field inhomogeneities. This problem is challenging because of the nonuniqueness of the solution for an isolated voxel. This paper tackles the problem using a ...
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ژورنال
عنوان ژورنال: Magnetic Resonance in Medicine
سال: 2011
ISSN: 0740-3194
DOI: 10.1002/mrm.23087