Magnetic resonance method and apparatus for obtaining a set of measured data relating to a breathing object of interest
AssigneeSiemens Aktiengesellschaft
InventorAlto Stemmer
Life of this patent
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Abstract
In a method for acquisition of a measurement data set of a respirating examination subject by magnetic resonance technology, the measurement data set is acquired by numerous individual measurements, wherein, for each individual measurement, a respiratory position and a respiratory phase are determined, based on which it is decided whether the individual measurement is to be included in the final measurement data set from which an image data set is reconstructed.
Claims15
A method for acquiring a magnetic resonance measurement data set of a respirating subject, comprising:
- operating a magnetic resonance data acquisition unit, in which a respirating subject is located, to acquire a plurality of magnetic resonance data subsets;
- entering the plurality of magnetic resonance data subsets into an electronic memory representing k-space, wherein k-space is comprised of a plurality of segments, and entering the respective magnetic resonance data subsets individually into respective k-space segments;
- also operating said magnetic resonance data acquisition unit to implement a navigator data acquisition, before and after each of said magnetic resonance data subset acquisitions, that identifies a respiratory position of the subject and a respiratory phase of the subject;
- and
- in a processor, using the respiratory position and the respiratory phase for the respective navigator data acquisitions for each of the magnetic resonance data subsets, automatically including or not including a respective magnetic resonance data subset in a final magnetic resonance data set from which a magnetic resonance image is to be reconstructed, and making said final magnetic resonance data set available in electronic form at an output of said processor.
A magnetic resonance apparatus comprising:
- a magnetic resonance data acquisition unit;
- a control unit configured to operate said magnetic resonance data acquisition, in which a respirating subject is located, to acquire a plurality of magnetic resonance data subsets;
- said control unit being configured to enter the plurality of magnetic resonance data subsets into an electronic memory representing k-space, wherein k-space is comprised of a plurality of segments, and entering the respective magnetic resonance data subsets individually into respective k-space segments;
- said control unit being configured to operate said magnetic resonance data acquisition unit to implement a navigator data acquisition, before and after each of said magnetic resonance data subset acquisitions, that identifies a respiratory position of the subject and a respiratory phase of the subject;
- and
- said control unit being configured to use the respiratory position and the respiratory phase for the respective navigator data acquisitions for each of the magnetic resonance data subsets to automatically include or not include a respective magnetic resonance data subset in a final magnetic resonance data set from which a magnetic resonance image is to be reconstructed, and to make said final magnetic resonance data set available in electronic form at an output of said processor.
A non-transitory, computer-readable data storage medium encoded with programming instructions, said storage medium being loaded into a computerized control and processing system of a magnetic resonance apparatus, said magnetic resonance apparatus also comprising a magnetic resonance data acquisition unit, and said programming instructions causing said computerized control and processing system to:
- operating the magnetic resonance data acquisition unit, in which a respirating subject is located, to acquire a plurality of magnetic resonance data subsets;
- enter the plurality of magnetic resonance data subsets into an electronic memory representing k-space, wherein k-space is comprised of a plurality of segments, and entering the respective magnetic resonance data subsets individually into respective k-space segments;
- also operate said magnetic resonance data acquisition unit to implement a navigator data acquisition, before and after each of said magnetic resonance data subset acquisitions, that identifies a respiratory position of the subject and a respiratory phase of the subject;
- and
- use the respiratory position and the respiratory phase for the respective navigator data acquisitions for each of the magnetic resonance data subsets to automatically include or not include a respective magnetic resonance data subset in a final magnetic resonance data set from which a magnetic resonance image is to be reconstructed, and make said final magnetic resonance data set available in electronic form at an output of said processor.
Dependencies are inferred from the claim text.