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Asynchrony of the early maturation of white matter bundles in healthy infants: Quantitative landmarks revealed noninvasively by diffusion tensor imaging

Dubois, Jessica ; Dehaene-Lambertz, Ghislaine ; Perrin, Muriel ; Mangin, Jean-François ; Cointepas, Yann ; Duchesnay, Edouard ; Le Bihan, Denis ; Hertz-Pannier, Lucie

Human brain mapping, 2008-01, Vol.29 (1), p.14-27 [Periódico revisado por pares]

Hoboken: Wiley Subscription Services, Inc., A Wiley Company

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Título:
Asynchrony of the early maturation of white matter bundles in healthy infants: Quantitative landmarks revealed noninvasively by diffusion tensor imaging
Autor: Dubois, Jessica ; Dehaene-Lambertz, Ghislaine ; Perrin, Muriel ; Mangin, Jean-François ; Cointepas, Yann ; Duchesnay, Edouard ; Le Bihan, Denis ; Hertz-Pannier, Lucie
Assuntos: Adult ; Aging ; Aging - physiology ; Anisotropy ; Biochemistry and metabolism ; Bioengineering ; Biological and medical sciences ; brain ; Central nervous system ; Cerebral Cortex ; Cerebral Cortex - anatomy & histology ; Cerebral Cortex - growth & development ; Cognition. Intelligence ; Corpus Callosum ; Corpus Callosum - anatomy & histology ; Corpus Callosum - growth & development ; development ; Diffusion ; Diffusion Magnetic Resonance Imaging ; Diffusion Magnetic Resonance Imaging - methods ; fascicle ; Female ; fibers ; Fornix, Brain ; Fornix, Brain - anatomy & histology ; Fornix, Brain - growth & development ; Fundamental and applied biological sciences. Psychology ; Humans ; Imaging ; Infant ; Internal Capsule ; Internal Capsule - anatomy & histology ; Internal Capsule - growth & development ; Investigative techniques, diagnostic techniques (general aspects) ; Life Sciences ; Male ; Medical sciences ; Mental imagery. Mental representation ; MRI ; myelination ; Nerve Fibers, Myelinated ; Nerve Fibers, Myelinated - physiology ; Nerve Fibers, Myelinated - ultrastructure ; Nervous system ; Neural Pathways ; Neural Pathways - anatomy & histology ; Neural Pathways - growth & development ; Psychology. Psychoanalysis. Psychiatry ; Psychology. Psychophysiology ; Pyramidal Tracts ; Pyramidal Tracts - anatomy & histology ; Pyramidal Tracts - growth & development ; Radiodiagnosis. Nmr imagery. Nmr spectrometry ; Spinothalamic Tracts ; Spinothalamic Tracts - anatomy & histology ; Spinothalamic Tracts - growth & development ; tractography ; Vertebrates: nervous system and sense organs
É parte de: Human brain mapping, 2008-01, Vol.29 (1), p.14-27
Notas: istex:6A9B8035438D9D6CF9F88360053309AD4FEE9FCC
ark:/67375/WNG-TWPMPVZ6-8
McDonnell foundation
ArticleID:HBM20363
ObjectType-Article-2
SourceType-Scholarly Journals-1
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PMCID: PMC6870818
Descrição: Normal cognitive development in infants follows a well‐known temporal sequence, which is assumed to be correlated with the structural maturation of underlying functional networks. Postmortem studies and, more recently, structural MR imaging studies have described qualitatively the heterogeneous spatiotemporal progression of white matter myelination. However, in vivo quantification of the maturation phases of fiber bundles is still lacking. We used noninvasive diffusion tensor MR imaging and tractography in twenty‐three 1–4‐month‐old healthy infants to quantify the early maturation of the main cerebral fascicles. A specific maturation model, based on the respective roles of different maturational processes on the diffusion phenomena, was designed to highlight asynchronous maturation across bundles by evaluating the time‐course of mean diffusivity and anisotropy changes over the considered developmental period. Using an original approach, a progression of maturation in four relative stages was determined in each tract by estimating the maturation state and speed, from the diffusion indices over the infants group compared with an adults group on one hand, and in each tract compared with the average over bundles on the other hand. Results were coherent with, and extended previous findings in 8 of 11 bundles, showing the anterior limb of the internal capsule and cingulum as the most immature, followed by the optic radiations, arcuate and inferior longitudinal fascicles, then the spinothalamic tract and fornix, and finally the corticospinal tract as the most mature bundle. Thus, this approach provides new quantitative landmarks for further noninvasive research on brain‐behavior relationships during normal and abnormal development. Hum Brain Mapp, 2008. © 2007 Wiley‐Liss, Inc.
Editor: Hoboken: Wiley Subscription Services, Inc., A Wiley Company
Idioma: Inglês

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Asynchrony of the early maturation of white matter bundles in healthy infants: Quantitative landmarks revealed noninvasively by diffusion tensor imaging

Dubois, Jessica ; Dehaene-Lambertz, Ghislaine ; Perrin, Muriel ; Mangin, Jean-François ; Cointepas, Yann ; Duchesnay, Edouard ; Le Bihan, Denis ; Hertz-Pannier, Lucie

Hoboken: Wiley Subscription Services, Inc., A Wiley Company

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