Diffusion tensor imaging findings in young children with benign external hydrocephalus differ from the normal...

Area of Science:

• Neuroimaging
• Pediatric Neurology
• Diffusion Tensor Imaging

Background:

• Benign external hydrocephalus (BEH) is a condition affecting infants.
• Understanding white matter (WM) changes in BEH is crucial for management.
• Diffusion tensor imaging (DTI) offers advanced insights into WM microstructure.

Purpose of the Study:

• To compare white matter (WM) integrity in pediatric patients with benign external hydrocephalus (BEH) against age-matched controls.
• To utilize diffusion tensor imaging (DTI) techniques for quantitative analysis.
• To investigate potential normalization of DTI parameters over time in BEH patients.

Main Methods:

• Retrospective analysis of 17 pediatric patients diagnosed with benign external hydrocephalus (BEH).
• Comparison of fractional anisotropy (FA) and mean diffusivity (MD) values from DTI scans with age-matched controls.
• Mixed model analysis for group differences and longitudinal assessment in a subset of patients.

Main Results:

• Significant differences in FA and MD were observed in specific white matter regions, including the genu and splenium of the corpus callosum (gCC, sCC), and posterior limb of the internal capsule (PLIC).
• BEH patients exhibited increased FA and decreased MD compared to controls in key regions.
• No significant differences were detected in later longitudinal scans, indicating normalization of DTI parameters.

Conclusions:

• Diffusion tensor imaging (DTI) can detect subtle white matter (WM) diffusion changes in pediatric benign external hydrocephalus (BEH).
• Increased FA and decreased MD in specific WM regions are characteristic of BEH.
• DTI parameters demonstrate normalization over time, providing objective markers for monitoring BEH patients.