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In utero MR imaging of a normal control fetus at 26 gestational weeks showing the regions of interest segmented for volume measurements; (a) Axial 3D FIESTA showing the ventricular system segmented in blue and (b) cerebral hemispheres represented by cream and yellow. (c) Reconstructed coronal and (d) sagittal images with the extra-axial spaces shown in red and the cerebellum and brain stem in green
