Method and system for phase-sensitive magnetic resonance imaging
AssigneeSiemens Aktiengesellschaft
InventorsPatrick Gross, Antje Kickhefel, Joerg Roland
Life of this patent
Estimating the term…
Abstract
In a method and system for phase-sensitive magnetic resonance imaging, a respective, complex image data set provided to a processor for each of at least two different echo times, the complex image data sets for the different echo times having been reconstructed from magnetic resonance data that acquired for the different echo times using an echo imaging sequence, at least one complex division image data set is determined in the processor by complex division of the complex image data sets for the two different echo times. The two different echo times define an echo time difference, so the resulting complex division image data set has phase components that are dependent on the echo time difference.
Claims25
A method for phase-sensitive magnetic resonance imaging, comprising:
- to a computerized processor, providing respective complex image data sets for at least two different echo times in a magnetic resonance echo imaging sequence, the respective complex image data sets for the different echo times being reconstructed from magnetic resonance data acquired respectively during the different echo times in said echo imaging sequence;
- in said processor, automatically determining at least one complex division image data set by complex division of the respective complex image data sets for the two different echo times, said two different echo times defining an echo time difference, and said at least one complex division image data set having phase components dependent on said echo time difference;
- and
- making said at least one complex division image data set available at an output of said processor in a form for further processing.
A magnetic resonance system for phase-sensitive magnetic resonance imaging, comprising:
- a magnetic resonance data acquisition unit configured to reconstruct respective complex image data sets from magnetic resonance data obtained during at least two different echo times in a magnetic resonance echo imaging sequence;
- a processor supplied with said respective complex image data sets, said processor being configured to automatically determine at least one complex division image data set by complex division of the respective complex image data sets for the two different echo times, said two different echo times defining an echo time difference, and said at least one complex division image data set having phase components dependent on said echo time difference;
- and
- said processor being configured to make said at least one complex division image data set available at an output of said processor in a form for further processing.
A non-transitory, computer-readable storage medium encoded with programming instructions, said storage medium being loaded into a control and evaluation computer system of a magnetic resonance imaging system, and said programming instructions causing said control and evaluation computer system to:
- receive respective complex image data sets for at least two different echo times in a magnetic resonance echo imaging sequence, the respective complex image data sets for the different echo times being reconstructed from magnetic resonance data acquired respectively during the different echo times in said echo imaging sequence;
- automatically determine at least one complex division image data set by complex division of the respective complex image data sets for the two different echo times, said two different echo times defining an echo time difference, and said at least one complex division image data set having phase components dependent on said echo time difference;
- and
- make said at least one complex division image data set available at an output of said processor in a form for further processing.
Dependencies are inferred from the claim text.