Volumetric analysis of a specific language region - the planum temporale. |
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Authors: | L Vadlamudi R Hatton K Byth J Harasty S Vogrin M J Cook A F Bleasel |
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Affiliation: | Neurology Department, Westmead Hospital, PO Box 533, Wentworthville, Sydney, New South Wales, 2145 Australia. |
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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 mm3 (SD = 567) and the mean right planum temporale volume was 2758 mm3 (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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