Abstract：
:Voxel-based morphometry (VBM) is an objective whole-brain technique for characterizing regional cerebral volume and tissue concentration differences in structural magnetic resonance images. In the current study, we used VBM to examine possible cerebral gray matter abnormalities in patients with posttraumatic stress disorder (PTSD) due to fire. The subjects included 12 victims of a fire disaster with PTSD and 12 matched victims of the same fire without PTSD. Magnetic resonance images were obtained on a 1.5-Tesla General Electric scanner at Central South University, and an entire brain volume of 248 contiguous slices was obtained for each subject. Then, gray matter density in patients with PTSD and control groups was compared by using a VBM approach in SPM2. Group analysis was thresholded at P<0.001, uncorrected, at the voxel level. The following three regions of reduced gray matter volume were found in patients with PTSD compared with controls: left hippocampus, left anterior cingulate cortex (ACC), and bilateral insular cortex. It was concluded that there are structural abnormalities of the hippocampus, the ACC and the insular cortex in patients with PTSD due to fire.
journal_name
Psychiatry Resjournal_title
Psychiatry researchauthors
Chen S,Xia W,Li L,Liu J,He Z,Zhang Z,Yan L,Zhang J,Hu Ddoi
10.1016/j.pscychresns.2005.09.006subject
Has Abstractpub_date
2006-01-30 00:00:00pages
65-72issue
1eissn
0165-1781issn
1872-7123pii
S0925-4927(05)00151-4journal_volume
146pub_type
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