Abstract

Planum temporale volumes were determined for 42 control children (ages 4.2–15.7 years) using magnetic resonance imaging. The mean left planum temporale volume was 2729 mm 3 (SD = 567) and the mean right planum temporale volume was 2758 mm 3 (SD = 546). No significant hemispheric asymmetry was demonstrated. Analysis of co-variance (ANCOVA) showed that the absolute and proportional planum temporale volumes were not significantly associated with age or gender. We also demonstrated a reproducible method for planum temporale volume measurement by acquiring images in the coronal plane and then visualising the sagittal plane to improve accuracy for the posterior border.

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