Abstract #2654
Segmentation of anterior thalamic nucleus in DTI study: comparison of CSD-based method and conventional DT model
Yi-Hsiu Hsiao 1 , Cheng-Yu Chen 1,2 , Ping-Huei Tsai 1 , Hsiao-Wen Chung 3 , Ming-Chung Chou 4 , Shih-Wei Chiang 3,5 , Yung-Chieh Chen 6 , and Hung-Wen Kao 5
1
Department of Medical Imaging and Imaging
Research Center, Taipei Medical University Hospital,
Taipei Medical University, Taipei, Taiwan,
2
Graduate
Institue of Clinical Medicine, Taipei Medical
University, Taipei, Taiwan,
3
Graduate
Institute of Biomedical Electrics and Bioinformatics,
National Taiwan University, Taipei, Taiwan,
4
Department
of Medical Imaging and Radiological Sciences, Kaohsiung
Medical University, Kaohsiung, Taiwan,
5
Department
of Radiology, Tri-Service General Hospital, Taipei,
Taiwan,
6
Department of Biomedical Imaging and
Radiological Sciences, National Yang-Ming University,
Taipei, Taiwan
The anterior thalamic nucleus (AN) plays an important
role in communication and the actual mechanism has not
been well-known. A reliable non-invasive imaging method
which is capable of delineating the nucleus is desired.
Several studies have demonstrated that MR diffusion
tensor imaging (DTI) could help identify the individual
regions of the thalamic nuclei by fiber tracking method,
but the results may not actually reflect the true
anatomic location. A reasonable solution has recently
been proposed using constrained spherical deconvolution
(CSD) tractography technique. In this study, we compared
CSD-based method with conventional diffusion tensor (DT)
model in localization of the AN and the fractional
anisotropy.
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