Cited by 152Fetal and Pediatric Neurological DisordersAdvanced MRI Techniques and ApplicationsNeonatal and fetal brain pathology

In vitro MRI of brain development

Radoš, Marko, Judaš, Miloš, Kostović, Ivica·2006·European Journal of Radiology

Abstract

In this review, we demonstrate the developmental appearance, structural features, and reorganization of transient cerebral zones and structures in the human fetal brain using a correlative histological and MRI analysis. The analysis of postmortem aldehyde-fixed specimens (age range: 10 postovulatory weeks to term) revealed that, at 10 postovulatory weeks, the cerebral wall already has a trilaminar appearance and consists of: (1) a ventricular zone of high cell-packing density; (2) an intermediate zone; (3) the cortical plate (in a stage of primary consolidation) with high MRI signal intensity. The anlage of the hippocampus is present as a prominent bulging in the thin limbic telencephalon. The early fetal telencephalon impar also contains the first commissural fibers and fornix bundles in the septal area. The ganglionic eminence is clearly visible as an expanded continuation of the proliferative ventricular zone. The basal ganglia showed an initial aggregation of cells. The most massive fiber system is in the hemispheric stalk, which is in continuity with thalamocortical fibers. During the mid-fetal period (15-22 postovulatory weeks), the typical fetal lamination pattern develops and the cerebral wall consists of the following zones: (a) a marginal zone (visible on MRI exclusively in the hippocampus); (b) the cortical plate with high cell-packing density and high MRI signal intensity; (c) the subplate zone, which is the most prominent zone rich in extracellular matrix and with a very low MRI signal intensity; (d) the intermediate zone (fetal "white matter"); (e) the subventricular zone; (f) the periventricular fiber-rich zone; (g) the ventricular zone. The ganglionic eminence is still a very prominent structure with an intense proliferative activity. During the next period (22-26 postovulatory weeks), there is the developmental peak of transient MRI features, caused by the high content of hydrophyllic extracellular matrix in the subplate zone and the accumulation of waiting afferent axons. The period between 27 and 30 postovulatory weeks is characterized by gradual blurring of the laminar structure in parallel with the formation of cerebral convolutions. In near-term preterm infants, T2-weighted MR images showed better contrast resolution than T1-weighted images. We conclude that transient fetal zones and subcortical structures display characteristic MRI features due to the high content of extracellular matrix in the subplate zone, higher MRI signal intensity of zones with high cell-packing intensity, and the presence of growing fibers.

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Crossref · 10.1016/j.ejrad.2005.11.019

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  • Ontogenesis follows the phylogenetic axis: histological and MRI analyses of normal foetal brain development have highlighted the early maturation of the hippocampus and thalamus.

    “Ontogenesis follows the phylogenetic axis: histological and MRI analyses [60,62] of normal foetal brain development have highlighted the early maturation of the hippocampus and thalamus (see also [82]).”

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Authors
Radoš, M., Judaš, M., & Kostović, I.
Affiliations
  • University Hospital Centre Zagreb (HR)
  • University of Zagreb (HR)
Corresponding author
Kostović, Ivica
Venue
European Journal of Radiology
Publisher
Elsevier BV
Published
2006-02
Volume
57
Issue
2
Pages
187-198
ISSN
0720-048X (ISSN-L)
OpenAlex
W1965271433
Cited by
152
References
25
Citations by year
2026: 4 · 2025: 3 · 2024: 6 · 2023: 7 · 2022: 6 · 2021: 10 · 2020: 8 · 2019: 7 · 2018: 4 · 2017: 5 · 2016: 3 · 2015: 6 · 2014: 7 · 2013: 10 · 2012: 8
FWCI
8.06
Type
journal article
Language
en
Open access
closed
Locations
  • European Journal of Radiology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Fetal and Pediatric Neurological Disorders
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced MRI Techniques and Applications
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Neonatal and fetal brain pathology
Keywords
fetal brain development, fetal brain MRI, extracellular matrix, cortical lamination, ventricular zone, ganglionic eminence, hippocampus, basal ganglia, commissural fibers, fornix, T2-weighted imaging, T1-weighted imaging, cerebral convolutions, histopathological correlation, human fetal brain, preterm infants, MRI signal intensity
MeSH terms
Brain, Fetus, Humans, Magnetic Resonance Imaging, Fetal Development, In Vitro Techniques

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