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Medical AI Inquiry: You was designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.  Labels: OBJECTIVE, METHODS, RESULTS. Meshes: Adult, Artifacts, Body Water, Corpus Callosum, Diffusion Tensor Imaging, Female, Humans, Image Enhancement, Male, Molecular Imaging, Myelin Sheath, Nerve Fibers, Myelinated, Reproducibility of Results, Sensitivity and Specificity, Signal Processing, Computer-Assisted.
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Do field inhomogeneity correction for gradient echo myelin water fraction imaging? Context: Recently, the multi-echo gradient echo (MGRE) sequence has been proposed for multicomponent T2* (MC T2*) based myelin water fraction (MWF) mapping. This approach has appeal because it can provide fast whole-brain coverage, has low specific absorption rate, and short echo spacing. However, the MGRE signal requires correction for accurate MWF mapping, because of its sensitivity to magnetic field inhomogeneities (ΔB Latter-echo MGRE data were fit to estimate B Simulations showed that MWFs are significantly biased in the presence of Gz and that our correction method leads to accurate MWF estimates. In vivo MWF maps obtained from corrected data showed recovery of MWF estimates in areas of high ΔB
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A new algorithm was presented for ΔB Final Decision: yes