Removal of nuisance signals from limited and sparse 1H MRSI data using a union-of-subspaces model

Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine
Chao MaZhi-Pei Liang

Abstract

To remove nuisance signals (e.g., water and lipid signals) for (1) H MRSI data collected from the brain with limited and/or sparse (k, t)-space coverage. A union-of-subspace model is proposed for removing nuisance signals. The model exploits the partial separability of both the nuisance signals and the metabolite signal, and decomposes an MRSI dataset into several sets of generalized voxels that share the same spectral distributions. This model enables the estimation of the nuisance signals from an MRSI dataset that has limited and/or sparse (k, t)-space coverage. The proposed method has been evaluated using in vivo MRSI data. For conventional chemical shift imaging data with limited k-space coverage, the proposed method produced "lipid-free" spectra without lipid suppression during data acquisition at 130 ms echo time. For sparse (k, t)-space data acquired with conventional pulses for water and lipid suppression, the proposed method was also able to remove the remaining water and lipid signals with negligible residuals. Nuisance signals in (1) H MRSI data reside in low-dimensional subspaces. This property can be utilized for estimation and removal of nuisance signals from (1) H MRSI data even when they have limited and/or spar...Continue Reading

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Citations

Aug 2, 2016·IEEE Transactions on Bio-medical Engineering·Qiang NingZhi-Pei Liang
Oct 27, 2017·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Xi PengZhi-Pei Liang
Sep 5, 2017·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Fan LamZhi-Pei Liang
Feb 4, 2016·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Chao MaZhi-Pei Liang
Feb 4, 2016·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Morteza EsmaeiliOvidiu C Andronesi
Oct 29, 2015·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Fan LamZhi-Pei Liang
Nov 17, 2016·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Ipshita Bhattacharya, Mathews Jacob
Jan 15, 2019·NMR in Biomedicine·Rohini Vidya ShankarVikram D Kodibagkar
Mar 29, 2019·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Martin WilsonFranklyn A Howe
May 31, 2019·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Liangjie LinPeter B Barker
Sep 5, 2019·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Fan LamZhi-Pei Liang
Jul 30, 2020·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Lihong TangJie Luo
Aug 19, 2020·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Rong GuoZhi-Pei Liang
May 1, 2018·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Sahar NassirpourAnke Henning
Jul 12, 2019·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Rong GuoZhi-Pei Liang
Dec 20, 2018·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Antoine KlauserFrancois Lazeyras
Feb 26, 2016·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Stephen J DeVience, Dirk Mayer
May 31, 2017·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Chao MaZhi-Pei Liang
Nov 4, 2020·Brain : a Journal of Neurology·Yao LiParashkev Nachev
Aug 3, 2021·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Peter AdanyPhil Lee
Nov 10, 2021·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Zepeng WangFan Lam

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