Using Neonatal Magnetic Resonance Imaging to Predict Gross Motor Disability at Four Years in Term-Born Children With...

Area of Science:

• Pediatric neurology
• Neuroimaging
• Developmental pediatrics

Background:

• Neonatal encephalopathy (NE) poses risks for basal ganglia/thalamus (BG/T) and watershed brain injuries.
• Children with BG/T injury face high motor impairment risks, but predictive scales for long-term outcomes are limited.
• This study investigates the link between BG/T injury and cerebral palsy (CP) severity in children with NE.

Purpose of the Study:

• To assess the predictive validity of basal ganglia/thalamus (BG/T) brain injury patterns on cerebral palsy (CP) severity at age four years.
• To compare the predictive performance of MRI-derived BG/T injury scores against clinical predictors.
• To inform early developmental interventions by understanding CP risk stratification.

Main Methods:

• A cohort of term-born neonates with NE underwent MRI within two weeks of birth.
• Brain injury was scored by a neuroradiologist, focusing on BG/T patterns.
• The Gross Motor Function Classification System (GMFCS) was assessed at age four, with logistic regression and AUROC used for analysis.

Main Results:

• Higher BG/T injury scores correlated with increased GMFCS levels, indicating greater CP severity.
• MRI-based BG/T scores demonstrated high predictive performance (AUROC 0.895) compared to clinical predictors (AUROC 0.599).
• A BG/T score of 4 indicated a 67% probability of moderate to severe CP, significantly higher than other injury patterns.

Conclusions:

• The BG/T injury score derived from MRI is a reliable predictor of CP risk and severity at age four.
• This predictive capability can guide timely and targeted early developmental interventions for affected children.
• MRI assessment of BG/T injury offers crucial prognostic information for NE outcomes.