itk::DiffusionTensor3D< TComponent > Class Template Reference
[Image Representation Objects, Objects Related to Tensor Images, Geometry Representation Objects]

Represent a diffusion tensor as used in DTI images. More...

#include <itkDiffusionTensor3D.h>

Inheritance diagram for itk::DiffusionTensor3D< TComponent >:

[legend]Collaboration diagram for itk::DiffusionTensor3D< TComponent >:

[legend]List of all members.

Public Types
typedef DiffusionTensor3D	Self
typedef SymmetricSecondRankTensor< TComponent, 3 >	Superclass
typedef Superclass::ValueType	ValueType
typedef Superclass::ComponentType	ComponentType
typedef Superclass::ComponentArrayType	ComponentArrayType
typedef Superclass::AccumulateValueType	AccumulateValueType
typedef Superclass::RealValueType	RealValueType
typedef Superclass::EigenValuesArrayType	EigenValuesArrayType
typedef Superclass::EigenVectorsMatrixType	EigenVectorsMatrixType
Public Member Functions
	DiffusionTensor3D ()
AccumulateValueType	GetTrace () const
RealValueType	GetFractionalAnisotropy () const
RealValueType	GetRelativeAnisotropy () const
RealValueType	GetInnerScalarProduct () const
	DiffusionTensor3D (const Self &r)
	DiffusionTensor3D (const Superclass &r)
	DiffusionTensor3D (const ComponentType &r)
	DiffusionTensor3D (const ComponentArrayType r)
Self &	operator= (const Self &r)
Self &	operator= (const Superclass &r)
Self &	operator= (const ComponentType &r)
Self &	operator= (const ComponentArrayType r)

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Detailed Description

template<typename TComponent>
class itk::DiffusionTensor3D< TComponent >

Represent a diffusion tensor as used in DTI images.

This class implements a 3D symmetric tensor as it is used for representing diffusion of water molecules in Diffusion Tensor Images.

This class derive from the SymmetricSecondRankTensor and from it inherit most of the Tensor related behavior. At this level we add the methods that are specific to 3D and that are closely related to the concept of diffusion.

Author:

Jeffrey Duda from School of Engineering at University of Pennsylvania

Torsten Rohlfing from SRI International Neuroscience Program.

This class was mostly based on files that Jeffrey Duda, Torsten Rohlfing and Martin Styner contributed to the ITK users list during a discussion on support for DiffusionTensorImages. A discussion on the design of this class can be found in the WIKI pages of NAMIC:

http://www.na-mic.org/Wiki/index.php/NAMIC_Wiki:DTI:ITK-DiffusionTensorPixelType

Note:

This work is part of the National Alliance for Medical Image Computing (NAMIC), funded by the National Institutes of Health through the NIH Roadmap for Medical Research, Grant U54 EB005149. Information on the National Centers for Biomedical Computing can be obtained from http://nihroadmap.nih.gov/bioinformatics.

Contributions by Torsten Rohlfing were funded by the following NIH grants

Alcohol, HIV and the Brain, NIAAA AA12999, PI: A. Pfefferbaum

Normal Aging of Brain Structure and Function NIA AG 17919, PI: E.V. Sullivan.

References

E. R. Melhem, S. Mori, G. Mukundan, M. A. Kraut, M. G. Pomper, and P. C. M. van Zijl, "Diffusion tensor MR imaging of the brain and white matter tractography," Am. J. Roentgenol., vol. 178, pp. 3-16, 2002.

See also:

SymmetricSecondRankTensor

Definition at line 79 of file itkDiffusionTensor3D.h.

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Member Typedef Documentation

template<typename TComponent> typedef Superclass::AccumulateValueType itk::DiffusionTensor3D< TComponent >::AccumulateValueType

Reimplemented from itk::SymmetricSecondRankTensor< TComponent, 3 >. Definition at line 94 of file itkDiffusionTensor3D.h.

template<typename TComponent> typedef Superclass::ComponentArrayType itk::DiffusionTensor3D< TComponent >::ComponentArrayType

Reimplemented from itk::SymmetricSecondRankTensor< TComponent, 3 >. Definition at line 92 of file itkDiffusionTensor3D.h.

template<typename TComponent> typedef Superclass::ComponentType itk::DiffusionTensor3D< TComponent >::ComponentType

Define the component type. Reimplemented from itk::SymmetricSecondRankTensor< TComponent, 3 >. Definition at line 88 of file itkDiffusionTensor3D.h.

template<typename TComponent> typedef Superclass::EigenValuesArrayType itk::DiffusionTensor3D< TComponent >::EigenValuesArrayType

Array of eigen-values. Reimplemented from itk::SymmetricSecondRankTensor< TComponent, 3 >. Definition at line 97 of file itkDiffusionTensor3D.h.

template<typename TComponent> typedef Superclass::EigenVectorsMatrixType itk::DiffusionTensor3D< TComponent >::EigenVectorsMatrixType

Reimplemented from itk::SymmetricSecondRankTensor< TComponent, 3 >. Definition at line 98 of file itkDiffusionTensor3D.h.

template<typename TComponent> typedef Superclass::RealValueType itk::DiffusionTensor3D< TComponent >::RealValueType

Reimplemented from itk::SymmetricSecondRankTensor< TComponent, 3 >. Definition at line 95 of file itkDiffusionTensor3D.h.

template<typename TComponent> typedef DiffusionTensor3D itk::DiffusionTensor3D< TComponent >::Self

Standard class typedefs. Reimplemented from itk::SymmetricSecondRankTensor< TComponent, 3 >. Definition at line 83 of file itkDiffusionTensor3D.h.

template<typename TComponent> typedef SymmetricSecondRankTensor<TComponent, 3> itk::DiffusionTensor3D< TComponent >::Superclass

Reimplemented from itk::SymmetricSecondRankTensor< TComponent, 3 >. Definition at line 84 of file itkDiffusionTensor3D.h.

template<typename TComponent> typedef Superclass::ValueType itk::DiffusionTensor3D< TComponent >::ValueType

Propagating some typedef from the superclass Reimplemented from itk::SymmetricSecondRankTensor< TComponent, 3 >. Definition at line 87 of file itkDiffusionTensor3D.h.

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Constructor & Destructor Documentation

template<typename TComponent> itk::DiffusionTensor3D< TComponent >::DiffusionTensor3D (   )

Default Constructor.

template<typename TComponent> itk::DiffusionTensor3D< TComponent >::DiffusionTensor3D (  const Self &  r  )

Constructor with initialization.

template<typename TComponent> itk::DiffusionTensor3D< TComponent >::DiffusionTensor3D (  const Superclass &  r  )

Constructor with initialization.

template<typename TComponent> itk::DiffusionTensor3D< TComponent >::DiffusionTensor3D (  const ComponentType &  r  )

Constructor with initialization.

template<typename TComponent> itk::DiffusionTensor3D< TComponent >::DiffusionTensor3D (  const ComponentArrayType  r  )

Constructor with initialization.

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Member Function Documentation

template<typename TComponent> RealValueType itk::DiffusionTensor3D< TComponent >::GetFractionalAnisotropy (   )  const

Get the value of Fractional Anisotropy from the Tensor.

template<typename TComponent> RealValueType itk::DiffusionTensor3D< TComponent >::GetInnerScalarProduct (   )  const

Get the Inner Scalar Product from the Tensor.

template<typename TComponent> RealValueType itk::DiffusionTensor3D< TComponent >::GetRelativeAnisotropy (   )  const

Get the value of Relative Anisotropy from the Tensor.

template<typename TComponent> AccumulateValueType itk::DiffusionTensor3D< TComponent >::GetTrace (   )  const

Get Trace value Reimplemented from itk::SymmetricSecondRankTensor< TComponent, 3 >.

template<typename TComponent> Self& itk::DiffusionTensor3D< TComponent >::operator= (  const ComponentArrayType  r  )

Pass-through assignment operator for the Array base class. Reimplemented from itk::SymmetricSecondRankTensor< TComponent, 3 >.

template<typename TComponent> Self& itk::DiffusionTensor3D< TComponent >::operator= (  const ComponentType &  r  )

Pass-through assignment operator for the Array base class. Reimplemented from itk::SymmetricSecondRankTensor< TComponent, 3 >.

template<typename TComponent> Self& itk::DiffusionTensor3D< TComponent >::operator= (  const Superclass &  r  )

Pass-through assignment operator for the Array base class.

template<typename TComponent> Self& itk::DiffusionTensor3D< TComponent >::operator= (  const Self &  r  )

Pass-through assignment operator for the Array base class. Reimplemented from itk::SymmetricSecondRankTensor< TComponent, 3 >.

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The documentation for this class was generated from the following file:

• itkDiffusionTensor3D.h

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