Limb apraxia in a patient with cerebral infarct: Diffusion tensor tractography study

Title
Limb apraxia in a patient with cerebral infarct: Diffusion tensor tractography study
Author(s)
장성호홍지헌[홍지헌]이준조윤우변우목조희경손수민
Keywords
MOTOR RECOVERY; CORTICOSPINAL TRACT; FUNCTIONAL MRI; STROKE; CORTEX; STIMULATION; MOVEMENT; INJURY; BRAIN; AREAS
Issue Date
201206
Publisher
IOS PRESS
Citation
NEUROREHABILITATION, v.30, no.4, pp.255 - 259
Abstract
We report on a patient with ideomotor apraxia (IMA) and limb-kinetic apraxia (LKA) following cerebral infarct, which demonstrated neural tract injuries by diffusion tensor tractography (DTT). A 67-year-old male was diagnosed as cerebral infarct in the left frontal cortex (anterior portion of the precentral gyms and prefrontal cortex) and centrum semiovale. The patient presented with severe paralysis of the right upper extremity and mild weakness of the right lower extremity at onset. At the time of DTT scanning (5 months after onset), the patient was able to move all joint muscles of the right upper extremity against gravity, except for the finger extensors, which he could extend partially against gravity. The patient showed intact ideational plan for motor performance; however, his movements were slow, clumsy, and mutilated when executing grasp-release movements of his affected hand. The patient's score on the ideomotor apraxia test was 20 (cut-off score < 32). DTTs for premotor cortex fibers, supplementary motor area fibers, and superior longitudinal fasciculus of the left hemisphere showed partial injuries, compared with those of the right side, and these injuries appeared to be responsible for IMA and LKA in this patient.
URI
http://hdl.handle.net/YU.REPOSITORY/28165http://dx.doi.org/10.3233/NRE-2012-0753
ISSN
1053-8135
Appears in Collections:
의과대학 > 재활의학교실 > Articles
의과대학 > 신경과학교실 > Articles
의과대학 > 영상의학과학교실 > Articles
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