Fibre tracking magnetic resonance imaging
AssigneeKoninklijke Philips Electronics N.V.
InventorsFrank Hoogenraad, Arianne Margarethe Van Muiswinkel, Ronaldus Holthuizen, Johan Van Den Brink
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Abstract
A method of deriving a directional structure from an object dataset is proposed. The object dataset assigns local directions to positions in a multidimensional geometrical space. For example the local directions concern local flow directions in a diffusion tensor magnetic resonance image at least one ‘region of interest’ is selected on the basis of spatial functional information, such as an fMRI image, time correlation of an fMRI image series with a functional paradigm or an anatomical image. These ‘region of interest’ are employed to initialize a fibre tracking to derive the directional structure that represents the nervous fibre system.
Claims9
A method of deriving a directional structure from an object dataset:
- the object dataset assigning local directions to positions in a multidimensional geometrical spaces;
- the method comprising the steps of:
- selecting at least one region of interest in the multi-dimensional geometrical space on the basis of spatial functional information;
- selecting candidate positions in the selected region of interests
- establish the directional structure on the basis of:
- dominant local directions at the candidate positions, and
- relative locations of these candidate positions in the multi-dimensional geometrical space.
A workstation arranged to
- receive an object dataset assigning local directions to positions in a multidimensional geometrical space;
- select at least one region of interest in the multi-dimensional geometrical space on the basis of spatial functional information;
- select candidate positions in the selected region of interest, and
- establish the directional structure on the basis of
- dominant local directions at the candidate positions, and
- relative locations of these candidate positions in the multi-dimensional geometrical space.
A computer program comprising instructions to select at least one region of interest in the multi-dimensional geometrical space on the basis of spatial functional information;
- select candidate positions in the selected region of interest, and
- establish the directional structure on the basis of
- dominant local directions at the candidate positions, and
- relative locations of these candidate positions in the multi-dimensional geometrical space.
Dependencies are inferred from the claim text.