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Neuroradiology

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01-01-2007 | Functional Neuroradiology

Functional MRI of the cervical spinal cord on 1.5 T with fingertapping: to what extent is it feasible?

Authors: N. Govers, J. Béghin, J. W. M. Van Goethem, J. Michiels, L. van den Hauwe, E. Vandervliet, P. M. Parizel

Published in: Neuroradiology | Issue 1/2007

Abstract

Introduction

Until recently, functional magnetic resonance imaging (fMRI) with blood oxygen level-dependent (BOLD) contrast, was mainly used to study brain physiology. The activation signal measured with fMRI is based upon the changes in the concentration of deoxyhaemoglobin that arise from an increase in blood flow in the vicinity of neuronal firing. Technical limitations have impeded such research in the human cervical spinal cord. The purpose of this investigation was to determine whether a reliable fMRI signal can be elicited from the cervical spinal cord during fingertapping, a complex motor activity. Furthermore, we wanted to determine whether the fMRI signal could be spatially localized to the particular neuroanatomical location specific for this task.

Methods

A group of 12 right-handed healthy volunteers performed the complex motor task of fingertapping with their right hand. T2*-weighted gradient-echo echo-planar imaging on a 1.5-T clinical unit was used to image the cervical spinal cord. Motion correction was applied. Cord activation was measured in the transverse imaging plane, between the spinal cord levels C5 and T1.

Results

In all subjects spinal cord responses were found, and in most of them on the left and the right side. The distribution of the activation response showed important variations between the subjects. While regions of activation were distributed throughout the spinal cord, concentrated activity was found at the anatomical location of expected motor innervation, namely nerve root C8, in 6 of the 12 subjects.

Conclusion

fMRI of the human cervical spinal cord on an 1.5-T unit detects neuronal activity related to a complex motor task. The location of the neuronal activation (spinal cord segment C5 through T1 with a peak on C8) corresponds to the craniocaudal anatomical location of the neurons that activate the muscles in use.

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Title: Functional MRI of the cervical spinal cord on 1.5 T with fingertapping: to what extent is it feasible?
Authors: N. Govers
J. Béghin
J. W. M. Van Goethem
J. Michiels
L. van den Hauwe
E. Vandervliet
P. M. Parizel
Publication date: 01-01-2007
Publisher: Springer-Verlag
Published in: Neuroradiology / Issue 1/2007
Print ISSN: 0028-3940
Electronic ISSN: 1432-1920
DOI: https://doi.org/10.1007/s00234-006-0162-4

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Functional MRI of the cervical spinal cord on 1.5 T with fingertapping: to what extent is it feasible?

Abstract

Introduction

Methods

Results

Conclusion

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Introduction

Methods

Results

Conclusion

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