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Title of Journal: Neuroradiology

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Abbravation: Neuroradiology

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Springer-Verlag

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10.1007/1-4020-4504-2_12

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1432-1920

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Diffusion tensor analysis of corpus callosum in pr

Authors: Shoichi Ito Takahiro Makino Wakako Shirai Takamichi Hattori
Publish Date: 2008/09/09
Volume: 50, Issue: 11, Pages: 981-985
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Abstract

Progressive supranuclear palsy PSP is a neurodegenerative disease featuring parkinsonism supranuclear ophthalmoplegia dysphagia and frontal lobe dysfunction The corpus callosum which consists of many commissure fibers probably reflects cerebral cortical function Several previous reports showed atrophy or diffusion abnormalities of anterior corpus callosum in PSP patients but partitioning method used in these studies was based on data obtained in nonhuman primates In this study we performed a diffusion tensor analysis using a new partitioning method for the human corpus callosumSeven consecutive patients with PSP were compared with 29 agematched patients with Parkinson’s Disease PD and 19 agematched healthy control subjects All subjects underwent diffusion tensor magnetic resonance imaging and the corpus callosum was partitioned into five areas on the midsagittal plane according to a recently established topography of human corpus callosum CC1—prefrontal area CC2—premotor and supplementary motor area CC3—motor area CC4—sensory area CC5—parietal temporal and occipital area Fractional anisotropy FA and apparent diffusion coefficient ADC were measured in each area and differences between groups were analyzedIn the PSP group FA values were significantly decreased in CC1 and CC2 and ADC values were significantly increased in CC1 and CC2 Receiver operating characteristic analysis showed excellent reliability of FA and ADC analyses of CC1 for differentiating PSP from PD

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