ArticleBiomedical spectroscopy and imaging2017
Phase-encoded single-voxel magnetic resonance spectroscopy for suppressing outer volume signals at 7 Tesla.
Article in Biomedical spectroscopy and imaging, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
3 citing papers in PubMed.
- Identifying Out-of-Voxel Echoes in Edited MRS With Phase Cycle Inversion.Magnetic resonance in medicine · 2026Article
- Identifying out-of-voxel echoes in edited MRS with phase cycle inversion.bioRxiv : the preprint server for biology · 2025Article
- Estimation and removal of spurious echo artifacts in single-voxel MRS using sensitivity encoding.Magnetic resonance in medicine · 2021Article
Corrections and comments
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Authors and funding
4 authors.
Funding
Abstract
backgroundDue to imperfect slice profiles, unwanted signals from outside the selected voxel may significantly contaminate metabolite signals acquired using in vivo magnetic resonance spectroscopy (MRS). The use of outer volume suppression may exceed the SAR threshold, especially at high field.
objectiveWe propose using phase-encoding gradients after radiofrequency (RF) excitation to spatially encode unwanted signals originating from outside of the selected single voxel.
methodsPhase-encoding gradients were added to a standard single voxel point-resolved spectroscopy (PRESS) sequence which selects a 2 × 2 × 2 cm
resultsBoth phantom and in vivo studies showed that spectra from the phase-encoded PRESS sequence were relatively immune from contamination by oil signals and have more accurate quantification results than spectra from standard PRESS spectra of the same voxel.
conclusionThe proposed phase-encoded single-voxel PRESS method can significantly suppress outer volume signals that may appear in the spectra of standard PRESS without increasing RF power deposition.
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