NDLI: Mean kurtosis alterations of cerebral white matter in patients with schizophrenia revealed by diffusion kurtosis imaging.

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Mean kurtosis alterations of cerebral white matter in patients with schizophrenia revealed by diffusion kurtosis imaging.

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Mean kurtosis alterations of cerebral white matter in patients with schizophrenia revealed by diffusion kurtosis imaging.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Narita, Hisashi Tha, Khin K. Hashimoto, Naoki Hamaguchi, Hiroyuki Nakagawa, Shin Shirato, Hiroki Kusumi, Ichiro
Description	Author Affiliation: Narita H ( Department of Psychiatry, Hokkaido University Graduate School of Medicine, North 15 West 7, Kita, Sapporo 060-8638, Japan. Electronic address: hisashinarita@eis.hokudai.ac.jp.); Tha KK ( Department of Radiation Medicine, Hokkaido University Graduate School of Medicine, North 15 West 7, Kita, Sapporo 060-8638, Japan); Hashimoto N ( Department of Psychiatry, Hokkaido University Graduate School of Medicine, North 15 West 7, Kita, Sapporo 060-8638, Japan.); Hamaguchi H ( Department of Radiological Technology, Hokkaido University Graduate School of Medicine, North 15 West 7, Kita, Sapporo 060-8638, Japan.); Nakagawa S ( Department of Psychiatry, Hokkaido University Graduate School of Medicine, North 15 West 7, Kita, Sapporo 060-8638, Japan.); Shirato H ( Department of Radiation Medicine, Hokkaido University Graduate School of Medicine, North 15 West 7, Kita, Sapporo 060-8638, Japan); Kusumi I ( Department of Psychiatry, Hokkaido University Graduate School of Medicine, North 15 West 7, Kita, Sapporo 060-8638, Japan.)
Abstract	INTRODUCTION: Diffusion kurtosis imaging can provide a better understanding of microstructural white matter (WM) changes where crossing fibers exist, compared with conventional diffusion tensor imaging. Here, we aimed to examine the differences of mean kurtosis (MK) and fractional anisotropy (FA) values between patients with schizophrenia and control subjects using voxel-based analysis (VBA). Additionally, we examined the correlation between these values and severity of clinical symptoms in patients with schizophrenia. METHODS: MK and FA values were acquired with a 3.0T scanner from 31 patients with schizophrenia and 31 age-, handedness-, and sex-matched healthy controls. VBA was used to compare the MK and FA maps of the patients with schizophrenia and healthy controls. We also performed a correlation analysis between the MK and FA values of the regions with significant differences and the positive and negative syndrome scale scores in patients with schizophrenia. RESULTS: Compared to FA values, voxels with MK decrease were more widespread across bilateral cerebral the WM of patients with schizophrenia. The MK values of left superior longitudinal fasciculus were significantly negatively correlated with the severity of positive symptoms (r=-0.451, P=0.011). There was no significant correlation between MK and FA values and other clinical variables. CONCLUSION: The diffusion kurtosis indices are suitable for evaluating altered WM structures in the human brain as they may detect white matter alterations of crossing fibers alterations of WM in schizophrenia and assess the clinical state of patients.
File Format	HTM / HTML
ISSN	02785846
Journal	Progress in Neuro-Psychopharmacology and Biological Psychiatry
Volume Number	71
e-ISSN	18784216
Language	English
Publisher	Elsevier
Publisher Date	2016-11-03
Publisher Place	Great Britain (UK)
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Psychiatry
Content Type	Text
Resource Type	Article
Subject	Biological Psychiatry Pharmacology

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