Meeting Banner
Abstract #2911

B0 Inhomogeneity Corrected Reconstruction for Low-Resolution J-resolved MRSI Using Low-Rank and Spatial Constraints

Zepeng Wang1,2 and Fan Lam1,2
1Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL, United States, 2Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, United States

This work presents a new method for B0 inhomogeneitycorrected reconstruction of J-resolved (multi-TE) MRSI datawith limited k-space coverage. A constrained reconstruction formulation was proposed to simultaneously reconstruct the data at all TEs, using a joint low-rank constraint that exploits the spatial-spectral-TE correlation in the data and a spatial constraint that exploits prior edge information from high-resolution anatomical images. Simulation and in vivo experiments using a customized 3D J-resolved EPSI acquisition have been performed to evaluate the proposed method. Experimental results demonstrated improved lineshape and SNR achieved by the proposed method over existing B0 correction methods.

This abstract and the presentation materials are available to 2020 meeting attendees and eLibrary customers only; a login is required.

Join Here