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Brainstem and spinal cord MRI identifies altered sensorimotor pathways post-stroke

Author

Listed:
  • Haleh Karbasforoushan

    (Northwestern University
    Northwestern University)

  • Julien Cohen-Adad

    (Polytechnique Montréal
    University of Montreal)

  • Julius P. A. Dewald

    (Northwestern University
    Northwestern University
    Northwestern University)

Abstract

Damage to the corticospinal tract is widely studied following unilateral subcortical stroke, whereas less is known about changes to other sensorimotor pathways. This may be due to the fact that many studies investigated morphological changes in the brain, where the majority of descending and ascending brain pathways are overlapping, and did not investigate the brainstem where they separate. Moreover, these pathways continue passing through separate regions in the spinal cord. Here, using a high-resolution structural MRI of both the brainstem and the cervical spinal cord, we were able to identify a number of microstructurally altered pathways, in addition to the corticospinal tract, post stroke. Moreover, decreases in ipsi-lesional corticospinal tract integrity and increases in contra-lesional medial reticulospinal tract integrity were correlated with motor impairment severity in individuals with stroke.

Suggested Citation

  • Haleh Karbasforoushan & Julien Cohen-Adad & Julius P. A. Dewald, 2019. "Brainstem and spinal cord MRI identifies altered sensorimotor pathways post-stroke," Nature Communications, Nature, vol. 10(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-11244-3
    DOI: 10.1038/s41467-019-11244-3
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