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Related Concept Videos

Brain Imaging01:14

Brain Imaging

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Brain imaging technologies provide critical insights into both the structure and function of the human brain, enabling medical professionals and researchers to diagnose, study, and treat neurological disorders or psychiatric disorders more effectively.
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans),  magnetic resonance imaging (MRI),  functional magnetic resonance imaging (fMRI), and Transcranial Magnetic...
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Diffusion Tensor Magnetic Resonance Imaging in Chronic Spinal Cord Compression
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Diffusion Tensor Imaging-Based Thalamic Segmentation in Deep Brain Stimulation for Chronic Pain Conditions.

Won Kim1, Srinivas Chivukula, Jason Hauptman

  • 1Department of Neurological Surgery, University of California, Los Angeles, Calif., USA.

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|August 19, 2016
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Diffusion tensor imaging (DTI) helped identify optimal thalamic deep brain stimulation (DBS) lead placement for chronic pain. Accurate targeting within the sensory thalamus correlated with successful pain relief, improving future treatment strategies.

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Area of Science:

  • Neuroscience
  • Neurosurgery
  • Medical Imaging

Background:

  • Thalamic deep brain stimulation (DBS) efficacy for refractory pain is inconsistent.
  • Previous attempts at thalamic DBS for pain have largely been abandoned due to poor outcomes.

Purpose of the Study:

  • To assess internal thalamic nuclei using diffusion tensor imaging (DTI)-based segmentation.
  • To correlate thalamic deep brain stimulation (DBS) lead position with clinical pain relief outcomes.

Main Methods:

  • Diffusion tensor imaging (DTI)-based segmentation of the sensory thalamus was performed on 5 patients.
  • Postoperative CT and preoperative MRI data were fused to analyze lead placement.
  • Lead positions were analyzed for interpatient variability and correlation with pain relief.

Main Results:

  • Four patients with significant pain relief had DBS contacts within or near the DTI-defined sensory thalamus.
  • One patient unresponsive to DBS lacked optimal lead placement.
  • High interpatient variability in sensory thalamus representation was observed.

Conclusions:

  • DTI-based segmentation accurately confirms thalamic lead placement relative to the sensory thalamus.
  • This technique may guide future thalamic DBS electrode implantation for chronic pain.
  • Precise targeting is crucial for improving deep brain stimulation efficacy in pain management.