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Research ArticlePediatric Neuroimaging
Open Access

Beyond Isolated and Associated: A Novel Fetal MR Imaging–Based Scoring System Helps in the Prenatal Prognostication of Callosal Agenesis

S. Glatter, G. Kasprian, D. Bettelheim, B. Ulm, M. Weber, R. Seidl, D. Prayer and M.C. Diogo
American Journal of Neuroradiology April 2021, 42 (4) 782-786; DOI: https://doi.org/10.3174/ajnr.A7064
S. Glatter
aFrom the Department of Radiology (S.G., G.K., M.W., D.P., M.C.D.), Division of Neuro- and Musculoskeletal Radiology
bDepartment of Pediatrics and Adolescent Medicine (S.G., R.S.), Division of Pediatric Neurology
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G. Kasprian
aFrom the Department of Radiology (S.G., G.K., M.W., D.P., M.C.D.), Division of Neuro- and Musculoskeletal Radiology
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D. Bettelheim
cDepartment of Gynecology and Obstetrics (D.B.), Medical University of Vienna, Vienna, Austria
dDepartment of Gynecology and Obstetrics (B.U., D.B.), Medical University of Vienna, Vienna, Austria
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B. Ulm
dDepartment of Gynecology and Obstetrics (B.U., D.B.), Medical University of Vienna, Vienna, Austria
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M. Weber
aFrom the Department of Radiology (S.G., G.K., M.W., D.P., M.C.D.), Division of Neuro- and Musculoskeletal Radiology
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R. Seidl
bDepartment of Pediatrics and Adolescent Medicine (S.G., R.S.), Division of Pediatric Neurology
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D. Prayer
aFrom the Department of Radiology (S.G., G.K., M.W., D.P., M.C.D.), Division of Neuro- and Musculoskeletal Radiology
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M.C. Diogo
aFrom the Department of Radiology (S.G., G.K., M.W., D.P., M.C.D.), Division of Neuro- and Musculoskeletal Radiology
eNeuroradiology Department (M.C.D.), Hospital Garcia de Orta, Portugal
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    FIG 1.

    Flowchart detailing patient inclusion and exclusion criteria. ND indicates neurodevelopmental.

  • FIG 2.
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    FIG 2.

    Comparison of mean MR imaging scores and 95% confidence intervals among the 4 CCA groups: isolated (complete and partial) and associated (complete and partial).

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    FIG 3.

    Example of associated partial CCA (white dashed arrow, D) in fetuses at 24 gestational weeks (A and B), 26 gestational weeks (C, D, F), and 31 gestational weeks (E). T2-weighted single-shot FSE images in the axial (A, B, E) and sagittal planes (C) and super-resolution 3D reconstruction of T2-weighted spin-echo FSE images through the coronal plane (D) and cortical surface (F). There is a malformation of cortical development with an abnormal “bump” in the insular region (dashed black arrow, A, C, F) and abnormal gyration in the posterior frontal cortex (dashed black arrow, E). There is a concurrent signal abnormality with low T2 signal intensity that follows the intermediate zone/subplate limit on the left (white arrow, A–D), also reaching the ventricular lining (black arrowhead, B), with slight ectasia of the homolateral posterior aspect of the lateral ventricle.

Tables

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  • Summarized outcome by subgroup of corpus callosum agenesis

    CCA GroupNeurodevelopmentTherapySchool
    NormalDelayPhyOccSpcOtherRegularAssistedNot Age
    MildModerateSevere
    I
     C15511921129
     P1621111117
    A
     C22212121
     P2213121131
    • Note:—I indicates isolated; A, associated; C, complete; P, partial; Phy, physiotherapy; Occ, occupational therapy; Spc, speech therapy; Not Age, children not attending school, who were still under the local mandatory school age (5 years-old).

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American Journal of Neuroradiology: 42 (4)
American Journal of Neuroradiology
Vol. 42, Issue 4
1 Apr 2021
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Cite this article
S. Glatter, G. Kasprian, D. Bettelheim, B. Ulm, M. Weber, R. Seidl, D. Prayer, M.C. Diogo
Beyond Isolated and Associated: A Novel Fetal MR Imaging–Based Scoring System Helps in the Prenatal Prognostication of Callosal Agenesis
American Journal of Neuroradiology Apr 2021, 42 (4) 782-786; DOI: 10.3174/ajnr.A7064

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Beyond Isolated and Associated: A Novel Fetal MR Imaging–Based Scoring System Helps in the Prenatal Prognostication of Callosal Agenesis
S. Glatter, G. Kasprian, D. Bettelheim, B. Ulm, M. Weber, R. Seidl, D. Prayer, M.C. Diogo
American Journal of Neuroradiology Apr 2021, 42 (4) 782-786; DOI: 10.3174/ajnr.A7064
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