Iterative reconstruction method with penalty terms from examination objects
AssigneeSiemens Aktiengesellschaft
InventorsJana Hutter, Peter Schmitt
Life of this patent
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Abstract
A method is disclosed for calculating an MR image of a target layer from an examination object, wherein the MR image is calculated using iterative reconstruction. In at least one embodiment, the method includes: acquiring MR data from an initial layer of the examination object, determining information produced by the examination object from the acquired MR data of the initial layer, determining a penalty term from the information produced by the examination object, and performing the iterative reconstruction of the MR image for the target layer taking into account the determined penalty term.
Claims20
A method for calculating an MR image of a target layer from an examination object, wherein the MR image is calculated using iterative reconstruction, the method comprising:
- acquiring MR data from an initial layer of the examination object, the initial layer differing spatially from the target layer;
- determining information produced by the examination object from the acquired MR data of the initial layer;
- determining a penalty term from the determined information produced by the examination object;
- and
- performing the iterative reconstruction of the MR image for the target layer, taking into account the determined penalty term.
A magnetic resonance system for calculating an MR image of a target layer from an examination object, wherein the MR image is calculated using iterative reconstruction, the magnetic resonance system comprising:
- an MR sequence control unit, configured to acquire MR data from an initial layer of the examination object, the initial layer differing spatially from the target layer;
- and
- an image computation unit, configured to
- determine information produced by the examination object from the acquired MR data of the initial layer,
- determine a penalty term from the information produced by the examination object, and
- perform the iterative reconstruction of the MR image for the target layer, taking into account the determined penalty term.
A method for calculating an MR image of a target layer from an examination object, wherein the MR image is calculated using iterative reconstruction, the method comprising:
- acquiring MR data from an initial layer of the examination object;
- determining information produced by the examination object from the acquired MR data of the initial layer;
- determining a penalty term from the determined information produced by the examination object;
- and
- performing the iterative reconstruction of the MR image for the target layer, taking into account the determined penalty term, wherein the penalty term is based on a Gaussian normal distribution, which describes the probability of a position of blood vessels in the target layer.
Dependencies are inferred from the claim text.