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

Kirchner, T; Henning, A; Pruessmann, KP; Boesiger, P

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

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https://cds.ismrm.org/protected/11MProceedings/files/1_program.htm
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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).

引用: https://hdl.handle.net/11858/00-001M-0000-0013-BBEC-9

要旨

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.