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  Over-discretized reconstruction to correct for B0 inhomogeneity and improve localization in 1H-MRSI of the prostate

Tenbergen, C., Ruhm, L., Heerschap, A., Henning, A., & Scheenen, T. (2020). Over-discretized reconstruction to correct for B0 inhomogeneity and improve localization in 1H-MRSI of the prostate. Poster presented at 2020 ISMRM & SMRT Virtual Conference & Exhibition.

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Tenbergen, C, Author
Ruhm, L1, 2, Author              
Heerschap, A, Author
Henning, A1, 2, Author              
Scheenen, T, Author
Affiliations:
1Research Group MR Spectroscopy and Ultra-High Field Methodology, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_2528692              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497794              

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 Abstract: n in vivo MRSI spatial inhomogeneities of the main magnetic field cause spectral line broadening and location dependent frequency shifts in the spectra. An over-discretized reconstruction method is applied to existing prostate 1H-MRSI data, consisting of spatial over-discretization of the MRSI grid, frequency shift correction according to a high resolution B0map and weighted spatial averaging to the target resolution. Intravoxel B0 variations are corrected for and resampling to a new target resolution results in improved localization of signals. This could lead to detection of signals with lower spectral intensity and to improved visualization of smaller cancer lesions in the prostate.

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 Dates: 2020-08
 Publication Status: Published online
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Title: 2020 ISMRM & SMRT Virtual Conference & Exhibition
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Start-/End Date: 2020-08-08 - 2020-08-14

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Title: 2020 ISMRM & SMRT Virtual Conference & Exhibition
Source Genre: Proceedings
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Pages: - Volume / Issue: - Sequence Number: 2914 Start / End Page: - Identifier: -