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This cross-sectional study compared children prenatally exposed to marijuana with matched controls with no prenatal exposure. The authors found that prenatal exposure to marijuana was associated with reduced WM microstructural integrity, with observed alterations localizing to the corticostriate circuitry and reduced cortical surface area in the left parahippocampal and right postcentral gyri, regions involved in goal-directed behavior, sensory processing, and emotional regulation.

This study investigated the diagnostic and clinical value for iuMRI in fetuses with small heads but no evident brain abnormality on USS. The results showed intracranial abnormalities in 10.5% of fetuses on iuMRI, most of which changed prognosis (⁓76%).