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Related Experiment Video

Updated: Mar 31, 2026

Advanced Diffusion Imaging in The Hippocampus of Rats with Mild Traumatic Brain Injury
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Diffusion Tensor Imaging Detects Functional and Structural Alterations in Post-Traumatic Distal Tibial Physeal Bars:

Camilo Perdomo-Luna1,2, Lejla Pepic3, Laura Santos1

  • 1Department of Radiology, Columbia University, Irvine Medical Center.

Journal of Pediatric Orthopedics
|March 30, 2026
PubMed
Summary
This summary is machine-generated.

Diffusion tensor imaging (DTI) can detect and quantify physeal bar size in pediatric patients. This advanced imaging technique shows promise for assessing growth disturbances after distal tibia injuries.

Keywords:
anklediffusion tensor imaging (DTI)growth platepediatric orthopaedicsphyseal bar

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Area of Science:

  • Pediatric Radiology
  • Orthopedic Imaging
  • Biomedical Engineering

Background:

  • Conventional imaging for post-traumatic physeal bars of the distal tibia has limitations in assessing physis integrity.
  • Abnormal ossification is identified, but the extent of injury to the remaining physis remains unclear.

Purpose of the Study:

  • To determine if diffusion tensor imaging (DTI) can noninvasively detect and quantify changes related to post-traumatic physeal bar size.
  • To assess DTI's potential as a biomarker for physeal injury extent.

Main Methods:

  • A retrospective cross-sectional study of 16 pediatric patients with distal tibial physeal bars.
  • Bilateral ankle MRI with DTI at 3.0 Tesla, using the contralateral healthy physis as a control.
  • Correlation analysis between physeal bar size and DTI metrics (FA, ADC, tractography parameters).

Main Results:

  • Physeal bar size strongly correlated with fractional anisotropy (FA) and apparent diffusion coefficient (ADC).
  • Increased bar size correlated with decreased tract count and volume, indicating reduced structural integrity.
  • Physeal bar size significantly correlated with side-to-side asymmetry in tract metrics.

Conclusions:

  • DTI effectively detects and quantifies distal tibial physeal alterations correlating with physeal bar size.
  • DTI metrics suggest potential as sensitive biomarkers for assessing the true extent of physeal injury.
  • This technique shows promise for improved early diagnosis and monitoring of pediatric growth disturbances.