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Magnetic resonance imaging in preterm infants.
Y Konishi1, M Kuriyama, K Hayakawa
1Department of Pediatrics, Fukui Medical School, Japan.
Pediatric Neurology
|May 1, 1991
Summary
Magnetic resonance imaging (MRI) reveals diverse brain myelination patterns in preterm infants. These findings highlight the wide variability in normal brain development visible on MRI during the perinatal period.
Area of Science:
- Neuroimaging
- Neonatal Neurology
- Pediatric Radiology
Background:
- Preterm infants exhibit varying degrees of brain maturation.
- Assessing myelination in preterm infants is crucial for understanding neurodevelopment.
- Magnetic resonance imaging (MRI) is a key tool for evaluating brain development.
Purpose of the Study:
- To characterize the magnetic resonance imaging (MRI) appearance of myelination in preterm infants.
- To document the range of myelination patterns observed in a cohort of preterm infants.
- To assess the variability of MRI findings in apparently normal preterm infants.
Main Methods:
- Magnetic resonance imaging (MRI) was performed on 9 preterm infants.
- Infants were assessed at 37-43 weeks postmenstrual age, born between 26-35 weeks gestation.
- Myelination was graded based on its most cephalic location, with specific patterns (2, 3, and 4) identified.
Main Results:
- Myelination patterns varied, with pattern 2 in 2 infants, pattern 3 in 3, and pattern 4 in 4.
- Bilateral low-intensity areas on T1-weighted images were observed in 7 infants.
- Ribbon-like high-intensity areas were noted in 5 infants.
Conclusions:
- Magnetic resonance imaging (MRI) demonstrates a wide spectrum of appearances in apparently normal preterm infants.
- Interpreting pathological significance of MRI findings requires caution in the perinatal period.
- These findings underscore the variability in normal myelination progression detectable by MRI.