NAMIC Wiki:DTI:ITK

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DTITubeSpatialObject and DTITubeSpatialObjectPoint

See Fiber format for a discussion of the DTITubeSpatialObject as a file format.

An itk::DTITubeSpatialObjectPoint represents DTI information at a physical coordinate. DTITubeSpatialObjectPoints are used to build itk::DTITubeSpatialObjects which can be connected into a tube network.

DTITubeSpatialObjectPoint stores the following information:

  • Tensor.
    • Assumed to be a symmetric tensor of dimension 3.
    • 6 floating point values.
  • Eigenvalues
    • 3 floating point values
  • Eigenvectors
    • 3 vectors each with 3 floating point values
  • FA
    • float
  • GA
    • float
  • ADC
    • float
  • MRI.
    • 5 floating point values.
  • Interpolation flag
    • int
  • Number of dimensions
    • unsigned short