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Area of the pituitary hyperintensity as a function of gestational age in weeks (A). No apparent change in the hyperintense area is seen with increasing gestational age in weeks (R2 = 0.001). The pituitary/pons signal ratios as a function of gestational age in weeks are shown (B). The pituitary/pons signal ratio shows a weak increase with gestational age (R2 = 0.243).
