Motion correction in magnetic resonance spectroscopy

Muhammad G. Saleh, Richard A.E. Edden, Linda Chang, Thomas Ernst

Research output: Contribution to journalReview articlepeer-review

Abstract

In vivo proton magnetic resonance spectroscopy and spectroscopic imaging (MRS/MRSI) are valuable tools to study normal and abnormal human brain physiology. However, they are sensitive to motion, due to strong crusher gradients, long acquisition times, reliance on high magnetic field homogeneity, and particular acquisition methods such as spectral editing. The effects of motion include incorrect spatial localization, phase fluctuations, incoherent averaging, line broadening, and ultimately quantitation errors. Several retrospective methods have been proposed to correct motion-related artifacts. Recent advances in hardware also allow prospective (real-time) correction of the effects of motion, including adjusting voxel location, center frequency, and magnetic field homogeneity. This article reviews prospective and retrospective methods available in the literature and their implications for clinical MRS/MRSI. In combination, these methods can attenuate or eliminate most motion-related artifacts and facilitate the acquisition of high-quality data in the clinical research setting.

Original languageEnglish (US)
Pages (from-to)2312-2326
Number of pages15
JournalMagnetic resonance in medicine
Volume84
Issue number5
DOIs
StatePublished - Nov 1 2020

Keywords

  • MRS
  • MRSI
  • motion
  • navigated spectroscopy sequence
  • prospective correction
  • retrospective correction

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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