https://scholars.lib.ntu.edu.tw/handle/123456789/342633
標題: | A multiple streamline approach to high angular resolution diffusion tractography | 作者: | Yi-Ping Chao JYH-HORNG CHEN Kuan-Hung Cho Chun-Hung Yeh Kun-Hsien Chou Ching-Po Lin |
關鍵字: | High angular resolution diffusion imaging; MRI; QBI; Tractography | 公開日期: | 八月-2008 | 卷: | 30 | 期: | 8 | 起(迄)頁: | 989 - 996 | 來源出版物: | Medical Engineering and Physics | 摘要: | Diffusion-weighted magnetic resonance imaging has the ability to map neuronal architecture by estimating the 3D diffusion displacement within fibrous brain structures. This approach has non-invasively been demonstrated in the human brain with diffusion tensor tractography. Despite its valuable application in neuroscience and clinical studies however, it faces an inherent limit in mapping fiber tracts through areas with intervoxel incoherence. Recent advances in high angular resolution diffusion imaging have surpassed this limit and have the ability to resolve the complex fiber intercrossing within each MR voxel. To connect the fiber tracts from a multi-fiber system, this study proposed a modified fiber assignment using the continuous tracking (MFACT) algorithm and a tracking browser to propagate tracts along complex diffusion profiles. The Q-ball imaging method was adopted to acquire the diffusion displacements. Human motor pathways with seed points from the internal capsule, motor cortex, and pons were studied respectively. The results were consistent with known anatomy and demonstrated the promising potential of the MFACT method in mapping the complex neuronal architecture in the human brain. © 2008 IPEM. |
URI: | http://scholars.lib.ntu.edu.tw/handle/123456789/342633 https://www.scopus.com/inward/record.uri?eid=2-s2.0-53049107056&doi=10.1016%2fj.medengphy.2008.01.010&partnerID=40&md5=a23cfb175f801ce03d66be19e78765bc |
ISSN: | 13504533 | DOI: | 10.1016/j.medengphy.2008.01.010 | SDG/關鍵字: | Brain; Chlorine compounds; Conformal mapping; Diffusion; Fiber optics; Fibers; Image segmentation; Imaging techniques; Magnetic resonance imaging; Motors; Resonance; Tensors; 3D diffusion; Brain structures; Clinical studies; Continuous tracking; Diffusion profiles; Diffusion tensors; Diffusion-weighted magnetic resonance imaging; Fiber systems; Fiber tracts; High angular resolution diffusion imaging; High angular resolutions; Human brains; Human motor; Motor-cortex; MRI; QBI; Tractography; Semiconductor doping; algorithm; article; brain region; capsula interna; cell density; diagnostic imaging; fiber; high angular resolution diffusion tractography; human; human tissue; information science; modified fiber assignment using the continuous tracking; motoneuron; motor cortex; nerve cell network; nuclear magnetic resonance imaging; pons; priority journal; trigeminal nucleus; Algorithms; Brain; Diffusion Magnetic Resonance Imaging; Image Enhancement; Image Interpretation, Computer-Assisted; Nerve Fibers, Myelinated; Pattern Recognition, Automated; Reproducibility of Results; Sensitivity and Specificity |
顯示於: | 電機工程學系 |
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