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Related Experiment Video

Updated: Jun 2, 2026

A Standardized Protocol for Functional Motor Mapping Using Navigated Transcranial Magnetic Stimulation
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Predicting functional motor potential in chronic stroke patients using diffusion tensor imaging.

Robert Lindenberg1, Lin L Zhu, Theodor Rüber

  • 1Department of Neurology, Neuroimaging and Stroke Recovery Laboratories, Beth Israel Deaconess Medical Center/Harvard Medical School, Boston, Massachusetts 02215, USA. rlindenb@bidmc.harvard.edu

Human Brain Mapping
|May 4, 2011
PubMed
Summary
This summary is machine-generated.

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Diffusion tensor imaging (DTI) measures of motor tracts predict motor recovery after stroke. Higher fractional anisotropy (FA) and lower diffusivity in corticospinal and transcallosal tracts correlate with greater functional improvement in stroke patients.

Area of Science:

  • Neuroscience
  • Radiology
  • Rehabilitation Medicine

Background:

  • Motor recovery after stroke depends on intact motor circuits.
  • The precise contribution of specific white matter tracts to recovery outcomes is not fully understood.

Purpose of the Study:

  • To investigate if diffusion tensor imaging (DTI)-derived metrics of corticospinal and transcallosal tracts can predict motor improvement in chronic stroke patients undergoing neurorehabilitation.

Main Methods:

  • 15 chronic stroke patients received transcranial direct current stimulation and therapy.
  • Diffusion tensor imaging (DTI) was used to assess pyramidal tracts (PT), alternate descending motor fibers (aMF), and M1-M1 transcallosal fibers.
  • Probabilistic fiber tracking reconstructed white matter tracts.

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Published on: February 22, 2020

Related Experiment Videos

Last Updated: Jun 2, 2026

A Standardized Protocol for Functional Motor Mapping Using Navigated Transcranial Magnetic Stimulation
10:27

A Standardized Protocol for Functional Motor Mapping Using Navigated Transcranial Magnetic Stimulation

Published on: February 27, 2026

Diffusion Tensor Magnetic Resonance Imaging in Chronic Spinal Cord Compression
07:00

Diffusion Tensor Magnetic Resonance Imaging in Chronic Spinal Cord Compression

Published on: May 7, 2019

Determining the Functional Status of the Corticospinal Tract Within One Week of Stroke
09:10

Determining the Functional Status of the Corticospinal Tract Within One Week of Stroke

Published on: February 22, 2020

Main Results:

  • Stroke patients exhibited reduced fractional anisotropy (FA) and increased diffusivity in ipsilesional corticospinal and M1-M1 transcallosal tracts compared to controls.
  • Higher FA and lower diffusivity in these tracts predicted greater motor function gains.
  • M1-M1 diffusivity showed the strongest predictive value for motor recovery.

Conclusions:

  • DTI measures effectively predict the potential for motor recovery in chronic stroke survivors.
  • Tract-specific diffusivity parameters can personalize recovery potential assessment and guide rehabilitation strategies.