Method and magnetic resonance system for magnetic resonance thermometry
AssigneeSiemens Aktiengesellschaft
InventorPatrick Gross
Life of this patent
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Abstract
In magnetic resonance (MR) thermometry, first and second magnetic resonance data that are acquired sequentially, from which a phase shift is determined between a measurement phase and a reference phase. In a first region of an examined person, the measurement phase is determined from the second magnetic resonance data and the reference phase is determined from the first magnetic resonance data. In a second region of the examined person, both the reference phase and measurement phase are determined from the second magnetic resonance data. Techniques for reference-based magnetic resonance thermometry and reference-free magnetic resonance thermometry can be applied.
Claims9
A method for magnetic resonance (MR) thermometry of a patient, comprising:
- operating an MR data acquisition unit, in which the patient is situated, to acquire first MR data from the patient at a first point in time;
- operating said MR data acquisition unit in which said patient is situated to acquire second MR data from the patient at a second point in time that occurs after said first point in time;
- providing said first MR data and said second MR data to a computerized processor and, in said processor, automatically determining a temperature of a first region of the patient by determining a phase shift between said second MR data in said first region, as a measurement phase, and said first MR data in said first region, as a reference phase;
- in said processor, automatically determining a temperature in a second region of the patient, which is different from said first region, by determining a phase shift between said second MR data in said second region, as a measurement phase, and said second MR data in a third region of the patient that is different from said first region, and that is situated adjacent to said second region, as a reference phase;
- and
- making the temperature determined in at least one of said first region or said second region available at an output of said processor in electronic form.
A magnetic resonance (MR) apparatus comprising:
- an MR data acquisition unit configured to receive a patient therein;
- a control unit configured to operate the MR data acquisition unit, while the patient is situated therein, to acquire first MR data from the patient at a first point in time;
- said control unit being configured to operate said MR data acquisition unit, while said patient is situated therein, to acquire second MR data from the patient at a second point in time that occurs after said first point in time;
- a computerized processor provided with said first MR data and said second MR data, said processor being configured to automatically determine a temperature of a first region of the patient by determining a phase shift between said second MR data in said first region, as a measurement phase, and said first MR data in said first region, as a reference phase;
- said processor being configured to automatically determine a temperature in a second region of the patient, which is different from said first region, by determining a phase shift between said second MR data in said second region, as a measurement phase, and said second MR data in a third region of the patient that is different from said first region, and that is situated adjacent to said second region, as a reference phase;
- and
- said processor being configured to make the temperature determined in at least one of said first region or said second region available at an output of said processor in electronic form.
Dependencies are inferred from the claim text.