ArticleBMC pregnancy and childbirth2025
A prior knowledge-guided convolutional neural network model for predicting fetal brain age from MRI during second and third trimesters.
Article in BMC pregnancy and childbirth, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundThis study aimed to evaluate the efficacy of a convolutional neural network (CNN) model in estimating fetal brain age from MRI scans during second and third trimesters.
methodsA total of 407 T2-weighted MRI including 2310 stacks in the axial, sagittal, and coronal planes were used. The average fetal brain age was 30.7 weeks (ranging from 22 to 39 weeks). The reference standard gestational age was based on ultrasonography measurements during the first trimester. A prior knowledge-guided CNN model was utilized for brain age prediction. The relationship between the predicted brain age and the reference standard was assessed using Lin's concordance correlation coefficient (ρc) and determination coefficient (R
resultsThe model exhibited a MAE of 4.62 ± 3.31 days, aligning closely with the reference standard (ρc = 0.977) and demonstrating a robust correlation between predicted and actual brain age (R
conclusionA prior knowledge-guided CNN model that utilized fetal brain MRI data from the second and third trimesters can accurately predict fetal brain age, which holds significant potential for optimizing pregnancy management.
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