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SHEET TRACTOGRAPHY USING DIFFUSION TENSOR MRI
SHEET TRACTOGRAPHY USING DIFFUSION TENSOR MRI
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机译：弥散张量磁共振成像片图
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摘要
Systems and methods are provided for performing sheet tractography using diffusion tensor magnetic resonance imaging (“MRI”), Diffusion tensor data acquired from a subject using an MR] system is provided. Eigenvectors and eigenvalues are determined for locations within a subject from the data. Fiber sheets are produced based on these eigenvectors and eigenvalues. For instance, at each location, a fiber sheet is defined to extend along a direction of a first eigenvector, and to have a width that extends along a direction defined by a second eigenvector and a thickness that extends along a direction defined by a third eigenvector. The width and thickness of a fiber sheet can be scaled based on the eigenvalues associated with the second and third eigenvectors, respectively. Metrics, such as a torsion angle that defines the twisting of a fiber sheet, can be determined and mapped based on the fiber sheets.
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