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Pediatric Radiology
Published in: Pediatric Radiology 12/2009

01-12-2009 | Original Article

Periventricular leukomalacia in preterm children: assessment of grey and white matter and cerebrospinal fluid changes by MRI

Authors: Loukia C. Tzarouchi, Loukas G. Astrakas, Anastasia Zikou, Vassilios Xydis, Paraskevi Kosta, Styliani Andronikou, Maria I. Argyropoulou

Published in: Pediatric Radiology | Issue 12/2009

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Abstract

Background

Brain plasticity in patients with periventricular leukomalacia (PVL) may suggest grey matter (GM) changes.

Objective

To assess the volume of 116 GM areas and total volume of GM, white matter (WM) and cerebrospinal fluid (CSF) in preterm children with PVL, using the Statistical Parametric Mapping (SPM5) and the Individual Brain Atlases Statistical Parametric Mapping (IBASPM) toolboxes.

Materials and methods

Ten preterm children (gestational age 31.7 ± 4.2 weeks, corrected age 27.8 ± 21.7 months) with PVL and 46 matched, preterm control subjects were studied using a three-dimensional T1-weighted sequence. Volumes were calculated using SPM5 and IBASPM.

Results

GM volume in frontal superior orbital, posterior cingulum and lingual gyrus, the putamen and thalamus was significantly higher in children with PVL (3.6 ± 0.6 cm3, 2.0 ± 0.5 cm3, 9.7 ± 1.7 cm3, 2.5 ± 0.6 cm3, 2.6 ± 0.9 cm3, respectively) than in controls (3.1 ± 0.7 cm3, 1.5 ± 0.2 cm3, 8.2 ± 1.3 cm3, 1.7 ± 1.4 cm3, 1.8 ± 0.4 cm3, respectively). White matter volume was lower (182.1 ± 40.5 cm3) and CSF volume was higher (300.8 ± 56.2 cm3) in children with PVL than in controls (222.9 ± 67.2 cm3, 219.0 ± 61.8 cm3, respectively), P < 0.05. No significant difference was found in the total GM volume and the volume of neocortex.

Conclusion

Preterm children with PVL show regional GM volume increase, possibly explained by axonal sprouting, neuronal hypertrophy and neurogenesis, which in turn may reflect brain plasticity.
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Metadata
Title
Periventricular leukomalacia in preterm children: assessment of grey and white matter and cerebrospinal fluid changes by MRI
Authors
Loukia C. Tzarouchi
Loukas G. Astrakas
Anastasia Zikou
Vassilios Xydis
Paraskevi Kosta
Styliani Andronikou
Maria I. Argyropoulou
Publication date
01-12-2009
Publisher
Springer-Verlag
Published in
Pediatric Radiology / Issue 12/2009
Print ISSN: 0301-0449
Electronic ISSN: 1432-1998
DOI
https://doi.org/10.1007/s00247-009-1389-0

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