![](/images/graphics-bg.png)
Brain Reorganization in Patients with Brachial Plexus Injury : A Longitudinal Functional MRI Study
Joint Authors
Hayashi, Naoto
Satake, Yoshirou
Yoshikawa, Takeharu
Ohtomo, Kuni
Tajiri, Yasuhito
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-05-01
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Natural & Life Sciences (Multidisciplinary)
Medicine
Information Technology and Computer Science
Abstract EN
The aim of this study is to assess plastic changes of the sensorimotor cortex (SMC) in patients with traumatic brachial plexus injury (BPI) using functional magnetic resonance imaging (fMRI).
Twenty patients with traumatic BPI underwent fMRI using blood oxygen level-dependent technique with echo-planar imaging before the operation.
Sixteen patients underwent their second fMRI at approximately one year after injury.
The subjects performed two tasks: a flexion-extension task of the affected elbow and a task of the unaffected elbow.
After activation, maps were generated, the number of significantly activated voxels in SMC contralateral to the elbow movement in the affected elbow task study (Naf) and that in the unaffected task study (Nunaf) were counted.
An asymmetry index (AI) was calculated, where AI=(Naf−Nunaf)/(Naf+Nunaf).
Ten healthy volunteers were also included in this fMRI study.
The AI of the first fMRI of the patients with BPI was significantly lower than that of the healthy subjects (P=0.035).
The AI of the second fMRI significantly decreased compared with that of the first fMRI (P=0.045).
Brain reorganization associates with peripheral nervous changes after BPI and after operation for functional reconstruction.
American Psychological Association (APA)
Yoshikawa, Takeharu& Hayashi, Naoto& Tajiri, Yasuhito& Satake, Yoshirou& Ohtomo, Kuni. 2012. Brain Reorganization in Patients with Brachial Plexus Injury : A Longitudinal Functional MRI Study. The Scientific World Journal،Vol. 2012, no. 2012, pp.1-11.
https://search.emarefa.net/detail/BIM-476613
Modern Language Association (MLA)
Yoshikawa, Takeharu…[et al.]. Brain Reorganization in Patients with Brachial Plexus Injury : A Longitudinal Functional MRI Study. The Scientific World Journal No. 2012 (2012), pp.1-11.
https://search.emarefa.net/detail/BIM-476613
American Medical Association (AMA)
Yoshikawa, Takeharu& Hayashi, Naoto& Tajiri, Yasuhito& Satake, Yoshirou& Ohtomo, Kuni. Brain Reorganization in Patients with Brachial Plexus Injury : A Longitudinal Functional MRI Study. The Scientific World Journal. 2012. Vol. 2012, no. 2012, pp.1-11.
https://search.emarefa.net/detail/BIM-476613
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-476613