Magnetic resonance imaging study of corpus callosum abnormalities in patients with bipolar disorder
Magnetic resonance imaging study of corpus callosum abnormalities in patients with bipolar disorder
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DOI：
10.1016/s0006-3223(03)00070-2
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发表时间：
2003-12-01
影响因子：
10.6
通讯作者：
Soares, JC
中科院分区：
文献类型：
--
作者：
Brambilla, P;Nicoletti, MA;Soares, JC
Background: This study was conducted to further examine the hypothesis of abnormalities in size of corpus callosum in subjects with bipolar disorder.Methods: Sixteen right-handed DSM-IV bipolar 1 patients and 27 right-handed healthy control subjects were studied. A 1.5-T GE Signa magnet was used, and three-dimensional gradient echo imaging (spoiled gradient recall acquisition) was conducted. Area measurements of corpus callosum were obtained blindly, with a semi-automated software, by a well-trained rater.Results: Right-handed bipolar 1 patients had significantly smaller total corpus callosum, genu, posterior body, and isthmus areas compared with right-handed healthy control subjects (analysis of covariance with age, gender, and intracranial volume as covariates, p < .05). Partial correlation analyses, controlled for intracranial volumes, found a significant inverse relationship between age and total callosal, genu, anterior body, isthmus, and circularity in healthy control subjects (p < .05) but not in bipolar patients (p > .05).Conclusions: Smaller callosal areas may lead to altered inter-hemispheric communication and be involved in the pathophysiology and cognitive impairment found in bipolar disorder.
