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Functional MRI Evidence for Motor Cortex Reorganization Adjacent to a Lesion in a Primary Motor Cortex

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Author(s)
이준
Alternative Author(s)
Lee, Jun
Publication Year
2002
Abstract
Jang SH, Han BS, Chang Y, Byun WM, Lee J, Ahn SH: Functional MRI evidence for motor cortex reorganization adjacent to a lesion in a primary motor cortex. Am J Phys Med Rehabil 2002;81:844–847.



Objective: The object of this study was to verify motor cortex reorganization in patients with primary motor cortex injury using functional magnetic resonance imaging.



Design: Ten control subjects and two patients with primary motor cortex injury, caused by a traumatic brain injury in patient 1 and meningioma in patient 2, were evaluated. Functional magnetic resonance imaging was performed using the blood oxygenation level–dependent technique at 1.5 T with hand movements.



Results: The contralateral primary sensorimotor cortex was activated by unaffected hand movements. However, only the contralateral primary sensory cortex in patient 1 and the premotor area in patient 2 were activated by affected hand movements, which were totally absent in control subjects.



Conclusion: We believe that the hand motor function of injured primary motor cortex was shifted into the primary sensory cortex in patient 1 and premotor area in patient 2. In conclusion, this finding may reflect a functional reorganization of the motor area in patients with a primary motor cortex injury.
Department
Dept. of Neurology (신경과학)
Publisher
School of Medicine
Citation
American Journal of Physical Medicine, Vol.81(11) : 844-847, 2002
Type
Article
ISSN
0894-9115
DOI
10.1097/00002060-200211000-00007
URI
http://kumel.medlib.dsmc.or.kr/handle/2015.oak/34913
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