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Improved Accuracy of Accelerated 3D T2* Mapping through Coherent Parallel Maximum Likelihood Estimation

Research output: Contribution to conferenceAbstract

Original languageEnglish
Publication statusPublished - 2018
EventJoint Annual Meeting ISMRM-ESMRMB 2018 - Paris expo Porte de Versailles, Paris, France
Duration: 16 Jun 201821 Jun 2018


ConferenceJoint Annual Meeting ISMRM-ESMRMB 2018
Internet address


We propose an approach that can reconstruct isotropic T2* Maps from undersampled data with improved accuracy by utilizing the phase information. Our approach extends the acceleration attained in Parallel Imaging(PI) to Maximum Likelihood Estimation(MLE) by imposing the exponential relaxation directly in the complex signal domain. The method was tested on a Multiecho Gradient Echo(MEGE) T2* mapping experiment in a numerical phantom and a human brain with realtime (prospective) undersampling. The approach showed that incorporating the phase information to perform coherent fitting resulted in better denoising and improved accuracy of the parametric maps.


Joint Annual Meeting ISMRM-ESMRMB 2018


Paris, France

Event: Conference

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ID: 53950076