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- W2012241524 endingPage "568" @default.
- W2012241524 startingPage "558" @default.
- W2012241524 abstract "Bipolar disorder (BD) is a chronic mental illness characterized by severe disruptions in mood and cognition. Diffusion tensor imaging (DTI) studies suggest that white matter (WM) tract abnormalities may contribute to the clinical hallmarks of the disorder. Using DTI and whole brain voxel-based analysis, we mapped the profile of WM anomalies in BD. All patients in our sample were euthymic and lithium free when scanned. Diffusion-weighted and T1-weighted structural brain images were acquired from 23 lithium-free euthymic subjects with bipolar I disorder and 19 age- and sex-matched healthy control subjects on a 1.5 T MRI scanner. Scans were processed to provide measures of fractional anisotropy (FA) and mean and radial diffusivity (MD and RD) at each WM voxel, and processed scans were nonlinearly aligned to a customized brain imaging template for statistical group comparisons. Relative to controls, the bipolar group showed widespread regions of lower FA, including the corpus callosum, cortical and thalamic association fibers. MD and RD were abnormally elevated in patients in many of these same regions. Our findings agree with prior reports of WM abnormalities in the corpus callosum and further link a bipolar diagnosis with structural abnormalities of the tapetum, fornix and stria terminalis. Future studies assessing the diagnostic specificity and prognostic implications of these abnormalities would be of interest." @default.
- W2012241524 created "2016-06-24" @default.
- W2012241524 creator A5006895356 @default.
- W2012241524 creator A5019781190 @default.
- W2012241524 creator A5030767579 @default.
- W2012241524 creator A5044611916 @default.
- W2012241524 creator A5045129866 @default.
- W2012241524 date "2013-01-01" @default.
- W2012241524 modified "2023-10-18" @default.
- W2012241524 title "White matter microstructural abnormalities in bipolar disorder: A whole brain diffusion tensor imaging study" @default.
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