Cited by 10Functional Brain Connectivity StudiesAdvanced MRI Techniques and ApplicationsAdvanced Neuroimaging Techniques and Applications

Toward a more informative representation of the fetal–neonatal brain connectome using variational autoencoder

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Kim, Jung-Hoon, De Asis-Cruz, Josepheen, Krishnamurthy, Dhineshvikram, Limperopoulos, Catherine·2023·eLife

Published version of a preprint

Abstract

Recent advances in functional magnetic resonance imaging (fMRI) have helped elucidate previously inaccessible trajectories of early-life prenatal and neonatal brain development. To date, the interpretation of fetal–neonatal fMRI data has relied on linear analytic models, akin to adult neuroimaging data. However, unlike the adult brain, the fetal and newborn brain develops extraordinarily rapidly, far outpacing any other brain development period across the life span. Consequently, conventional linear computational models may not adequately capture these accelerated and complex neurodevelopmental trajectories during this critical period of brain development along the prenatal-neonatal continuum. To obtain a nuanced understanding of fetal–neonatal brain development, including nonlinear growth, for the first time, we developed quantitative, systems-wide representations of brain activity in a large sample (>500) of fetuses, preterm, and full-term neonates using an unsupervised deep generative model called variational autoencoder (VAE), a model previously shown to be superior to linear models in representing complex resting-state data in healthy adults. Here, we demonstrated that nonlinear brain features, that is, latent variables, derived with the VAE pretrained on rsfMRI of human adults, carried important individual neural signatures, leading to improved representation of prenatal-neonatal brain maturational patterns and more accurate and stable age prediction in the neonate cohort compared to linear models. Using the VAE decoder, we also revealed distinct functional brain networks spanning the sensory and default mode networks. Using the VAE, we are able to reliably capture and quantify complex, nonlinear fetal–neonatal functional neural connectivity. This will lay the critical foundation for detailed mapping of healthy and aberrant functional brain signatures that have their origins in fetal life.

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  • Non-linear components of networks tend to predict fetal age more accurately than conventional linear models.

    “Notably, non-linear components of networks tend to predict fetal age more accurately than conventional linear models [66].”

    From Brain structural and functional outcomes in the offspring of women experiencing psychological distress during pregnancy (2024) · cites this paper as [66]

    The Results section on cross-center age prediction reports that nonlinear VAE representations outperformed linear representations across fetal–neonatal datasets. But the Results section on gestational and postmenstrual age prediction says that, when fetuses were evaluated separately, a linear cortical-parcel representation predicted fetal age more accurately. The claim omits this important distinction. (LLM, conf=0.88)

    Experimental — accuracy not yet measured

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1 of the 70 references couldn’t be matched to a known paper.

Research works printed but not linked: 1

  1. Kim J Zhang Y Han K Wen Z Choi M Liu Z 2021b Representation learning of resting state fMRI with Variational Autoencoder GitHub https://github.com/libilab/rsfMRI-VAE PMC8485214 34303794

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Authors
Kim, J.-H., De Asis-Cruz, J., Krishnamurthy, D., & Limperopoulos, C.
Affiliations
  • Children's National (US)
  • Developing Brain Institute, Children's National Hospital
Corresponding author
Limperopoulos, Catherine
Venue
eLife
Published
2023-05-15
Volume
12
ISSN
2050-084X (ISSN-L)
OpenAlex
W4376613048
Cited by
10
References
70
Citations by year
2025: 3 · 2024: 5 · 2023: 2
FWCI
1.50
Type
journal article
Language
en
Open access
Locations
  • eLife (publishedVersion, cc-by)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nc)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • National Heart, Lung, and Blood Institute (R01 HL116585-01)
  • Canadian Institutes of Health Research (MOP-81116)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Functional Brain Connectivity Studies
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced MRI Techniques and Applications
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced Neuroimaging Techniques and Applications
Keywords
fetal brain development, neonatal brain development, brain connectome, variational autoencoder, latent variables, resting-state fMRI, age prediction, functional brain networks, sensory networks, default mode network, preterm infants
MeSH terms
Adult, Brain, Female, Fetus, Humans, Infant, Newborn, Magnetic Resonance Imaging, Pregnancy, Neuroimaging, Connectome

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