Abnormal Sylvian fissure on prenatal cerebral imaging: significance and correlation with neuropathological and postnatal data

Guibaud, Laurent; Selleret, Lise; Larroche, Jeanne‐Claudie; Buénerd, Annie; Alias, F.; Gaucherand, P.; Portes, Vincent Des; Pracros, J.P.

doi:10.1002/uog.5357

Cited by 37 publications

(38 citation statements)

References 18 publications

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“…This age range is also important clinically, since this coincides with the typical gestational age for clinical MRI scans, when critical evaluations of the pregnancy are often needed (Bendersky et al, 2006; Glenn and Barkovich, 2006). Normal growth patterns of this period are therefore vital for defining delay or abnormality in the formation of sulcal and gyral structures (e.g., Guibaud et al, 2008). Our findings highlighted the development of primary sulci, by the locations of significant volume changes, that are known to appear between 20 and 28 weeks GA, namely the central, cingulate, circular, calcarine, and superior temporal sulci (Garel et al, 2003; Dooling et al, 1983).…”

Section: Discussionmentioning

confidence: 99%

Local Tissue Growth Patterns Underlying Normal Fetal Human Brain Gyrification QuantifiedIn Utero

et al. 2011

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Existing knowledge of growth patterns in the living fetal human brain is based upon in utero imaging studies by magnetic resonance imaging (MRI) and ultrasound, which describe overall growth and provide mainly qualitative findings. However, formation of the complex folded cortical structure of the adult brain requires, in part, differential rates of regional tissue growth. To better understand these local tissue growth patterns, we applied recent advances in fetal MRI motion correction and computational image analysis techniques to 40 normal fetal human brains covering a period of primary sulcal formation (20 -28 gestational weeks). Growth patterns were mapped by quantifying tissue locations that were expanding more or less quickly than the overall cerebral growth rate, which reveal increasing structural complexity. We detected increased local relative growth rates in the formation of the precentral and postcentral gyri, right superior temporal gyrus, and opercula, which differentiated between the constant growth rate in underlying cerebral mantle and the accelerating rate in the cortical plate undergoing folding. Analysis focused on the cortical plate revealed greater volume increases in parietal and occipital regions compared to the frontal lobe. Cortical plate growth patterns constrained to narrower age ranges showed that gyrification, reflected by greater growth rates, was more pronounced after 24 gestational weeks. Local hemispheric volume asymmetry was located in the posterior peri-Sylvian area associated with structural lateralization in the mature brain. These maps of fetal brain growth patterns construct a spatially specific baseline of developmental biomarkers with which to correlate abnormal development in the human.

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Section: Discussionmentioning

confidence: 99%

Local Tissue Growth Patterns Underlying Normal Fetal Human Brain Gyrification QuantifiedIn Utero

et al. 2011

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“…It may be related to extracortical factors. [2829] We should take ventriculomegaly, frontal hypoplasia, subarachnoid broadening arachnoid cyst, and other cerebral abnormalities into account.…”

Section: Discussionmentioning

confidence: 99%

Ultrasonographic Characteristics of Cortical Sulcus Development in the Human Fetus between 18 and 41 Weeks of Gestation

Chen¹,

Li²,

Luo

et al. 2017

Chinese Medical Journal

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Background:Fetal brain development is a complicated process that continues throughout pregnancy. Fetal sulcus development has typical morphological features. Assessment of fetal sulcus development to understand the cortical maturation and development by prenatal ultrasound has become widespread. This study aimed to explore a reliable method to assess cortical sulcus and to describe the normal sonographic features of cortical sulcus development in the human fetus between 18 and 41 weeks of gestation.Methods:A cross-sectional study was designed to examine the fetal cortical sulcus development at 18–41 weeks of gestation. Ultrasound was used to examine the insula, sylvian fissure (SF), parieto-occipital fissure (POF), and calcarine fissure (CF). Bland-Altman plots were used for assessing the concordance, and the intraclass correlation coefficient was used for assessing the reliability.Results:SF images were successfully obtained in 100% of participants at 22 weeks of gestation, while the POF images and CF images could be obtained in 100% at 23 weeks of gestation and 24 weeks of gestation, respectively. The SF width, temporal lobe depth, POF depth, and the CF depth increased with the developed gestation. The width of uncovered insula and the POF angle decreased with the developed gestation. By 23 weeks of gestation, the insula was beginning to be covered. Moreover, it completed at 35 weeks of gestation. The intra- and inter-observer agreements showed consistent reproducibility.Conclusions:This study defined standard views of the fetal sulcus as well as the normal reference ranges of these sulcus measurements between 18 and 41 weeks of gestation. Such ultrasonographic measurements could be used to identify fetuses at risk of fetal neurological structural disorders.

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“…In two of our cases, abnormalities of the intermediate zone were the earliest indication of CMV infection, predating the development of microcephaly, ventriculomegaly and intracranial calcification (Figure ). It is important to note that a congenital or acquired process that interferes with neuronal migration and development of a normal cerebral lamination pattern can be predicted to disrupt normal gyral and sulcal development.…”

Section: Discussionmentioning

confidence: 99%

Sonographic assessment of normal and abnormal patterns of fetal cerebral lamination

Pugash

Hendson

Dunham

et al. 2012

Ultrasound in Obstet & Gyne

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Abnormal Sylvian fissure on prenatal cerebral imaging: significance and correlation with neuropathological and postnatal data

Abstract: Objective To illustrate and determine the significance of abnormal Sylvian fissure development (or abnormal operculization)

Cited by 37 publications

References 18 publications

Local Tissue Growth Patterns Underlying Normal Fetal Human Brain Gyrification QuantifiedIn Utero

Local Tissue Growth Patterns Underlying Normal Fetal Human Brain Gyrification QuantifiedIn Utero

Ultrasonographic Characteristics of Cortical Sulcus Development in the Human Fetus between 18 and 41 Weeks of Gestation

Sonographic assessment of normal and abnormal patterns of fetal cerebral lamination

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