Method and apparatus for magnetic resonance imaging
AssigneeSiemens Aktiengesellschaft
InventorAndreas Greiser
Life of this patent
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Abstract
In a method and apparatus for magnetic resonance imaging, in order to create a T1 map, an pulse sequence is used that includes at least one exposure cycle, wherein the exposure cycle includes an inversion pulse, a saturation pulse quantity of one or more saturation pulses and a readout step quantity of one or more readout steps. Within the exposure cycle, at least one saturation pulse of the saturation pulse quantity follows the inversion pulse and at least one readout step of the readout step quantity follows the at least one saturation pulse.
Claims10
A method for acquiring magnetic resonance (MR) image data from a subject, comprising:
- providing a control computer of an MR apparatus, with a pulse sequence comprising at least one exposure cycle that comprises an inversion pulse, that inverts a magnetization of nuclear spins in the subject, one or more saturation pulses, that saturate said magnetization, and one or more readout steps that each include excitation of said nuclear spins and wherein, within said exposure cycle, at least one saturation pulse follows the inversion pulse, and at least one readout step follows the at least one saturation pulse, and occurs prior to said inversion pulse;
- and
- from said control computer, operating said MR apparatus according to said pulse sequence, while the subject is situated in said MR apparatus, to acquire MR data from said examination object in order to compile a data file containing said MR data, and making said data file available at an output of said control computer in electronic form.
A magnetic resonance (MR) apparatus for acquiring MR data from a subject comprising:
- an MR data acquisition unit
- a control computer provided with a pulse sequence, said pulse sequence comprising at least one exposure cycle that comprises an inversion pulse, that inverts a magnetization of nuclear spins in the subject, one or more saturation pulses that saturate said magnetization, and one or more readout steps that each include excitation of said nuclear spins and wherein, within said exposure cycle, at least one saturation pulse follows the inversion pulse, and at least one readout step follows the at least one saturation pulse, and occurs prior to said inversion pulse;
- and
- said control computer being configured to operate said MR data acquisition unit while the subject is situated therein, according to said pulse sequence to acquire MR data from said subject in order to compile a data file containing said MR data, and to make said data file available at an output of said control computer in electronic form.
A non-transitory, computer-readable data storage medium encoded with programming instructions, said data storage medium being loaded into a control computer of a magnetic resonance MR apparatus in order to acquire MR data from a subject, and said programming instructions causing said control computer to:
- obtain a pulse sequence comprising at least one exposure cycle that comprises an inversion pulse that inverts a magnetization of nuclear spins in the subject, one or more saturation pulses that saturate said magnetization, and one or more readout steps that each include excitation of said nuclear spins and wherein, within said exposure cycle, at least one saturation pulse follows the inversion pulse, and at least one readout step follows the at least one saturation pulse, and occurs prior to said inversion pulse;
- and
- operate said MR apparatus, while the subject is situated therein, according to said pulse sequence to acquire MR data from said subject in order to compile a data file containing said MR data, and make said data file available at an output of said control computer in electronic form.
Dependencies are inferred from the claim text.