Abstract #2032
Increase of fractional anisotropy in contralateral thalamic motor nucleus in MCA stroke using tract-based segmentation method
Yi-Hsiu Hsiao 1 , Yung-Chieh Chen 2 , Cheng-Yu Chen 1,3 , Shih-Wei Chiang 4,5 , Hsiao-Wen Chung 5 , Ping-Huei Tsai 1 , Ming-Chung Chou 6 , Hung-Wen Kao 4 , and Chao-Ying Wang 4
1
Department of Medical Imaging and Imaging
Research Center, Taipei Medical University Hospital,
Taipei Medical University, Taipei, Taiwan,
2
Department
of Biomedical Imaging and Radiological Sciences,
National Yang-Ming University, Taipei, Taiwan,
3
Graduate
Institue of Clinical Medicine, Taipei Medical
University, Taipei, Taiwan,
4
Department of
Radiology, Tri-Service General Hospital, Taipei, Taiwan,
5
Graduate
Institute of Biomedical Electrics and Bioinformatics,
National Taiwan University, Taipei, Taiwan,
6
Department
of Medical Imaging and Radiological Sciences, Kaohsiung
Medical University, Kaohsiung, Taiwan
Thalamus plays a pivot role in the process of rebuilding
the circuitry after MCA stroke by neuro-adaptation
called plasticity. One previous study has demonstrated
that, by using diffusion tensor imaging (DTI), an
increase in mean diffusivity in thalamus was shown after
MCA infarct but fractional anisotropy (FA) remained
unchanged. This study was limited by a lack of
investigating the individual thalamic nucleus.
Therefore, we aim to evaluate the changes of FA in the
motor-sensory-related thalamic nuclei (VA, VL and VPL)
in patients with MCA ischemic stroke at both acute and
chronic stages using tract-based segmentation method.
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