Magnetic resonance method and system to determine the position of a slice relative to a region moving relative to the slice
AssigneeSiemens Aktiengesellschaft
InventorsAntje Kickhefel, Joerg Roland, Eva Rothgang
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Abstract
In a magnetic resonance method and system to determine a position of a slice relative to a region moving relative to the slice within a predetermined volume segment of an examination subject located in the magnetic resonance system, a physical property within the slice is detected with spatial resolution at multiple points in time, such that a time curve of the physical property is detected for at least one voxel of the slice. The position of the slice relative to the region is determined with respect to defined points in time, depending on the time curve.
Claims10
A method to determine a position of a slice of an examination subject relative to a region of the examination subject, the region moving relative to the slice, within a predetermined volume of the examination subject, comprising:
- operating a magnetic resonance data acquisition unit, in which the examination subject is located, to acquire spatially resolved data representing a physical property within the slice at multiple points in time, to produce a time curve of said physical property for at least one voxel of the slice, said physical property being selected from the group consisting of temperature, flow speed of a fluid in the examination subject, a diffusion coefficient of diffusion of a substance in the examination subject, and a result of a spectral analysis;
- and
- in a processor, using said time curve to automatically determine the position of the slice relative to the region at defined points in time.
A magnetic resonance system to determine a position of a slice of an examination subject relative to a region of the examination subject, the region moving relative to the slice, within a predetermined volume of the examination subject, comprising:
- a magnetic resonance data acquisition unit;
- a control unit configured to operate said magnetic resonance data acquisition unit, in which the examination subject is located, to acquire spatially resolved data representing a physical property within the slice at multiple points in time, to produce a time curve of said physical property for at least one voxel of the slice, said physical property being selected from the group consisting of temperature, flow speed of a fluid in the examination subject, a diffusion coefficient of diffusion of a substance in the examination subject, and a result of a spectral analysis;
- and
- a processor configured to use said time curve to automatically determine the position of the slice relative to the region at defined points in time.
A non-transitory, computer-readable data storage medium encoded with programming instructions, said storage medium being loaded into a computerized control and evaluation system of a magnetic resonance system, said magnetic resonance system also comprising a magnetic resonance data acquisition unit, and said programming instructions causing said computerized control and evaluation system to:
- operate a magnetic resonance data acquisition unit, in which the examination subject is located, to acquire spatially resolved data representing a physical property within the slice at multiple points in time, to produce a time curve of said physical property for at least one voxel of the slice, said physical property being selected from the group consisting of temperature, flow speed of a fluid in the examination subject, a diffusion coefficient of diffusion of a substance in the examination subject, and a result of a spectral analysis;
- and
- use said time curve to automatically determine the position of the slice relative to the region at defined points in time.
Dependencies are inferred from the claim text.