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Fast diffusion tensor imaging and tractography of the whole cervical spinal cord using point spread function corrected echo planar imaging

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  1. Quantification of cerebral perfusion and cerebrovascular reserve using Turbo-QUASAR arterial spin labeling MRI

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  3. Gamma-aminobutyric acid edited echo-planar spectroscopic imaging (EPSI) with MEGA-sLASER at 7T

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  4. Comparison of prospective head motion correction with NMR field probes and an optical tracking system

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  5. Improved calculation of the equilibrium magnetization of arterial blood in arterial spin labeling

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  1. Cortical and Subcortical Effects of Transcutaneous Spinal Cord Stimulation in Humans with Tetraplegia

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  2. Differences in frontal network anatomy across primate species

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  3. Limited colocalization of microbleeds and microstructural changes after severe traumatic brain injury

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  4. Gender, class, employment status and social mobility following spinal cord injury in Denmark, the Netherlands, Norway and Switzerland

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  5. Validation of structural brain connectivity networks: The impact of scanning parameters

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Diffusion tensor imaging has been used in a number of spinal cord studies, but severe distortions caused by susceptibility induced field inhomogeneities limit its applicability to investigate small volumes within acceptable acquisition times. A way to evaluate image distortions is to map the point spread function of the voxel intensity in a reference scan. In this study, the point spread function was mapped for an echo-planar imaging sequence in the human cervical spinal cord with isotropic resolution and large field of view. Correction with the point spread function map improved anatomical consistency, and full cervical tractography was thereby possible from a C1 seed region in healthy controls and one individual with spinal cord injury. It is suggested that point spread function mapping of the spinal cord can be used in combination with sequence-based methods for reduction of susceptibility artifacts or in high-field imaging settings where off-resonance effects are pronounced. Magn Reson Med, 2012. © 2012 Wiley Periodicals, Inc.
Original languageEnglish
JournalMagnetic Resonance in Medicine
Volume69
Issue number1
Pages (from-to)144-149
Number of pages6
ISSN0740-3194
DOIs
Publication statusPublished - 2013

ID: 36424055