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Related Experiment Video

Updated: Jan 16, 2026

Intraoperative Ultrasound in Spinal Surgery
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Spinal Cord Injury in Real Time: Intra-Operative Ultrasound for Acute Phase Examination in Non-Human Primates.

Eleni Sinopoulou1, Michelle W Chow1, Numaira Obaid2,3

  • 1Department of Neurosciences, University of California-San Diego, La Jolla, CA 92093, USA.

Brain Sciences
|September 27, 2025
PubMed
Summary
This summary is machine-generated.

Intra-operative ultrasound precisely visualized spinal cord contusion injuries in non-human primates, revealing early lesion progression. This method aids in refining preclinical models and predicting recovery after spinal cord injury.

Keywords:
contusionintraoperativenon-human primatespinal cord injuryultrasound

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Area of Science:

  • Neuroscience
  • Medical Imaging
  • Veterinary Science

Background:

  • Spinal cord contusion injury (SCI) is a critical model for understanding pathophysiology and testing therapies.
  • Non-human primate (NHP) models are vital for preclinical SCI research.
  • Accurate assessment of early injury progression is crucial for therapeutic development.

Purpose of the Study:

  • To implement intra-operative ultrasound (IOU) for precise lesion localization and examination in an NHP SCI model.
  • To assess acute lesion progression within the first 10 minutes post-injury.
  • To compare IOU findings with magnetic resonance imaging (MRI) at 3 weeks post-injury.

Main Methods:

  • Cervical hemi-contusion injury was induced in an NHP model.
  • Intra-operative ultrasound (IOU) was used to visualize the lesion site at 5 and 10 minutes post-injury.
  • Lesion extent was quantified and compared between time points and with 3-week MRI data.

Main Results:

  • A small increase in lesion area (rostrocaudal and mediolateral) was observed between 5 and 10 minutes post-injury.
  • A significant 26% increase in mediolateral lesion extent was noted when comparing early time points to 3-week MRI.
  • IOU provided high-resolution in vivo visualization of the hemicontusion lesion.

Conclusions:

  • IOU enables critical insights into the early progression of spinal cord contusion injuries.
  • This technique can refine preclinical SCI models for more accurate therapeutic evaluation.
  • IOU offers significant predictive value for animal recovery outcomes post-spinal cord injury.