Abnormal thalamic volume in treatment-naïve boys with Tourette syndrome
Authors: Lee, J.-S.1; Yoo, S.-S.2; Cho, S.-Y.1; Ock, S.-M.3; Lim, M.-K.4; Panych, L. P.2
Source: Acta Psychiatrica Scandinavica, Volume 113, Number 1, January 2006 , pp. 64-67(4)
Publisher: Blackwell Publishing
Abstract:
Lee J-S, Yoo S-S, Cho S-Y, Ock S-M, Lim M-K, Panych LP. Abnormal thalamic volume in treatment-naïve boys with Tourette syndrome. <br />Acta Psychiatr Scand 2005: 1–4. © 2005 Blackwell Munksgaard. Objective: Thalamic abnormality has been implicated in the pathophysiology of Tourette's syndrome (TS). We examined the presence of aberrant thalamic volume from the treatment-naïve boys with TS using magnetic resonance imaging (MRI). Method: Volumetric MRI was performed on 18 treatment-naïve boys with TS, aged 7–14 years, and 16 healthy comparison subjects. The anatomical boundaries were then manually parcellated to measure the thalamic volume. Results: Tourette's syndrome subjects had a significantly larger left thalamus in comparison with those of healthy subjects. On the contrary, no group difference was observed from the right thalamic volume. TS subjects also showed a significant reduction in rightward asymmetry in thalamic volume compared with the healthy subjects. Conclusion: Our findings provide new evidence of abnormal thalamic volume in pediatric TS.Keywords: Tourette syndrome; thalamus; magnetic resonance imaging
Document Type: Research article
DOI: 10.1111/j.1600-0447.2005.00666.x
Affiliations: 1: Department of Psychiatry, Inha University Hospital and College of Medicine, Incheon, South Korea 2: Department of Radiology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA 3: Department of Family Medicine, Catholic University Medical College, Uijongbu 4: Department of Radiology, Inha University Hospital and College of Medicine, Incheon, South Korea

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