Do apparent diffusion coefficient measurements predict outcome in children with neonatal hypoxic-ischemic...

Area of Science:

• Neuroimaging
• Pediatric Neurology
• Neonatal Medicine

Background:

• Hypoxic-ischemic (HI) brain lesions in neonates can be detected and quantified using diffusion-weighted imaging (DWI).
• Assessing the predictive value of DWI and apparent diffusion coefficient (ADC) measurements is crucial for determining outcomes in infants experiencing perinatal asphyxia.

Purpose of the Study:

• To evaluate the predictive capability of DWI and ADC measurements for neurodevelopmental outcomes in term neonates who suffered perinatal asphyxia.
• To determine if ADC values in specific brain regions correlate with developmental outcomes.

Main Methods:

• Retrospective analysis of MR imaging in 24 term neonates within 10 days of birth due to asphyxia.
• ADC measurements were taken in standardized brain regions and visibly abnormal DWI areas.
• Developmental outcomes were categorized as normal, mildly abnormal, definitely abnormal, or death.

Main Results:

• No significant difference in outcome was observed between infants with and without visible DWI abnormalities.
• ADC values in visibly abnormal DWI regions did not predict outcome.
• ADC values in normal-appearing basal ganglia and brain stem significantly correlated with outcome: lower ADC indicated adverse outcomes, while higher ADC suggested favorable outcomes.

Conclusions:

• ADC values in normal-appearing basal ganglia and brain stem are significant predictors of neurodevelopmental outcome in infants with perinatal asphyxia.
• ADC measurements in these specific normal-appearing regions offer predictive value independent of DWI findings.