In-plane motion correction for MR spectroscopic imaging

A motion-detection method is described that is specifically suited for MR spectroscopic imaging (MRSI) studies. Information on in-plane rotation and translation of the subject was obtained using external spatial reference markers that are uniquely identified via their chemical shift. The marker loca...

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Bibliographic Details
Published in:	Magnetic resonance in medicine Vol. 39; no. 5; p. 749
Main Authors:	Haupt, C I, Kiefer, A P, Maudsley, A A
Format:	Journal Article
Language:	English
Published:	United States 01-05-1998
Subjects:	Brain - anatomy & histology Female Head Movements Humans Image Processing, Computer-Assisted Magnetic Resonance Imaging - methods Magnetic Resonance Spectroscopy - methods Male Phantoms, Imaging
Online Access:	Get more information
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Description
Summary:	A motion-detection method is described that is specifically suited for MR spectroscopic imaging (MRSI) studies. Information on in-plane rotation and translation of the subject was obtained using external spatial reference markers that are uniquely identified via their chemical shift. The marker locations were obtained directly from the acquired data at each encoding step, and no additional data acquisition was required. This method was applied to brain 1H MRSI studies that include subcutaneous lipid signals, which otherwise result in enhanced sensitivity to subject motion.
ISSN:	0740-3194
DOI:	10.1002/mrm.1910390512