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Meeting Abstract

Accelerated 1H-MRSI: Artifact Reduction by Target-Driven Reconstruction

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Zitation

Kirchner, T., Henning, A., Pruessmann, K., & Boesiger, P. (2011). Accelerated 1H-MRSI: Artifact Reduction by Target-Driven Reconstruction. In 19th Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2011).


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0013-BBEC-9
Zusammenfassung
In parallel 1H MRSI, artifacts detrimental to spectral quality can be due to low sampling resolution and residual aliasing. We therefore introduce a novel reconstruction method that minimizes the deviation from a predefined target shape for the spectral response function (SRF). Based on undersampled 3T in vivo MRSI data, we demonstrate that by this method, a significant reduction in spectral contamination originating from subcranial fat can be achieved. In particular, Gaussian target shapes lead to vastly improved fat artifact suppression compared to standard reconstruction.