The corpus callosum in first episode schizophrenia: a diffusion tensor imaging study.


Price, G; Bagary, MS; Cercignani, M; Altmann, DR; Ron, MA; (2005) The corpus callosum in first episode schizophrenia: a diffusion tensor imaging study. Journal of neurology, neurosurgery, and psychiatry, 76 (4). pp. 585-7. ISSN 0022-3050 DOI: 10.1136/jnnp.2004.042952

Full text not available from this repository.

Abstract

BACKGROUND: Neuropathological and imaging studies suggest that corpus callosum abnormalities (CC) are present in schizophrenia, but it remains to be determined whether these abnormalities are present at illness onset. Diffusion tensor imaging (DTI), which is more sensitive than conventional magnetic resonance imaging (MRI) in detecting subtle structural changes in the organisation and integrity of white matter tracts, is an ideal tool to investigate this question. OBJECTIVE: To determine whether CC abnormalities are present at illness onset in schizophrenia. METHODS: Twenty patients (14 men, six women) with first episode schizophrenia and 29 controls (11 men, 18 women) were studied. Both high resolution volumetric T1-weighted images and DTI were acquired. Regions of interest (ROI) were placed in the splenium and genu of the CC and fractional anisotropy (FA) and diffusivity (D) measured. RESULTS: No differences in FA or D were detected in these regions between patients and controls. In women, irrespective of group membership, FA was significantly lower and there was a trend for D to be higher than in men, indicating less barriers to diffusion in females. CONCLUSION: The negative findings of this study suggest that in the early stages of schizophrenia there is no disruption to the integrity of the CC and raise the possibility that the neuropathological abnormalities may appear later and be progressive, at least in some patients.

Item Type: Article
Faculty and Department: Faculty of Epidemiology and Population Health > Dept of Medical Statistics
PubMed ID: 15774453
Web of Science ID: 227951100029
URI: http://researchonline.lshtm.ac.uk/id/eprint/13866

Statistics


Download activity - last 12 months
Downloads since deposit
0Downloads
263Hits
Accesses by country - last 12 months
Accesses by referrer - last 12 months
Impact and interest
Additional statistics for this record are available via IRStats2

Actions (login required)

Edit Item Edit Item