MRI study of thalamus volumes in juvenile patients with bipolar disorder

E. Serap Monkul, Mark A. Nicoletti, David Spence, Roberto B. Sassi, David Axelson, Paolo Brambilla, John P. Hatch, Matcheri Keshavan, Neal Ryan, Boris Birmaher, Jair C. Soares

Research output: Contribution to journalArticle

15 Scopus citations

Abstract

In vivo imaging studies suggest functional abnormalities of the thalamus in adult patients with bipolar disorder, but the presence of anatomical abnormalities is controversial. Our objective in this study was to compare the thalamus volumes of children and adolescents with bipolar disorder versus healthy controls to determine whether any morphological abnormalities exist early in illness course. We studied 16 patients with bipolar disorder according to DSM-IV criteria (mean age ± SD = 15.5 ± 3.4 years) and 21 healthy control subjects (mean age ± SD = 16.9 ± 3.8 years). Blinded examiners measured thalamic gray matter volumes with a semiautomated technique. Analysis of covariance, with age, gender, and intracranial brain volume as covariates, revealed no significant differences in left and right thalamic volumes between patients with bipolar disorder and healthy controls. Our findings indicate there are no significant differences in thalamus size between children and adolescents with bipolar disorder and healthy comparison subjects, in contrast to available findings for schizophrenia and first-break psychosis. Any differences in thalamus size that may exist between patients with bipolar disorder and healthy controls must amount to small effect sizes.

Original languageEnglish (US)
Pages (from-to)347-352
Number of pages6
JournalDepression and Anxiety
Volume23
Issue number6
DOIs
Publication statusPublished - Oct 31 2006

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Keywords

  • Affective disorders
  • Bipolar disorder
  • Children
  • MRI
  • Mood disorders
  • Neuroimaging
  • Thalamus

ASJC Scopus subject areas

  • Clinical Psychology
  • Psychiatry and Mental health

Cite this

Monkul, E. S., Nicoletti, M. A., Spence, D., Sassi, R. B., Axelson, D., Brambilla, P., ... Soares, J. C. (2006). MRI study of thalamus volumes in juvenile patients with bipolar disorder. Depression and Anxiety, 23(6), 347-352. https://doi.org/10.1002/da.20161