3-D Prospective Motion Correction for MR Spectroscopy

INTRODUCTION Spectroscopy scans generally require averaging (over minutes) to obtain acceptable signal-to-noise ratio (SNR). Patient motion compromises the quality and reliability of the resulting spectra. Such concerns are particularly acute with subjects who have difficulty holding still, for instance young children or adults who are in pain or confused. Therefore, we implemented a single-voxel H MR spectroscopy sequence with adaptive motion-correction based on the 3-dimensional prospective motion correction module for brain scans described in [1].