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Computed tomographic findings in children with spastic diplegia: correlation with the severity of their motor
1Department of Pediatric Neurology, Seirei-Mikatabara General Hospital, Shizuoka, Japan.
Insights
Computed tomography in children with spastic diplegia revealed reduced periventricular white matter, particularly near the trigone. This reduction correlated with severe motor abnormalities in affected children.
Area of Science:
- Neuroimaging
- Pediatric Neurology
- Developmental Disorders
Background:
- Spastic diplegia is a common form of cerebral palsy.
- Understanding the neuroanatomical correlates of spastic diplegia is crucial for diagnosis and management.
Purpose of the Study:
- To analyze computed tomographic (CT) findings in children with spastic diplegia.
- To investigate the relationship between specific CT abnormalities and motor function severity.
Main Methods:
- Retrospective analysis of CT scans from 46 children (9 months to 3 years corrected age) with spastic diplegia.
- Measurement of lateral ventricle size (anterior horn width) and extracerebral low-density areas.
- Assessment of periventricular white matter reduction, particularly around the trigone.
Main Results:
- Enlarged lateral ventricles and extracerebral low-density areas were observed in some patients but did not correlate with motor severity.
- Reduced periventricular white matter, especially adjacent to the trigone, was noted in many children, likely due to cerebral white matter atrophy from periventricular leukomalacia.
- Anterior expansion of white matter reduction from the trigone correlated significantly with severe motor abnormalities.
Conclusions:
- Periventricular white matter reduction, particularly anteriorly from the trigone, is a key CT finding associated with severe motor impairment in spastic diplegia.
- While ventricular enlargement may be present, it is not a reliable indicator of motor deficit severity.
- CT imaging provides valuable insights into the neuroanatomical basis of motor dysfunction in pediatric spastic diplegia.
Abstract:
Computed tomographic findings of 46 children with spastic diplegia examined at nine months to three years of age corrected for preterm births were analyzed. Both the size of the lateral ventricles measured by the width of the anterior horns, and the volume of the extracerebral low-density areas were enlarged in some patients. Both enlargements did not, however, correlate to the severity of the motor abnormality in the patients. The low-density areas of the periventricular white matter, especially adjacent to the trigone, were reduced in many children, probably due to the atrophy of the cerebral white matter having periventricular leukomalacia. The anterior expansion of the white matter reduction from the trigone corresponded to the severe motor abnormality in the children with spastic diplegia.