METHOD AND COMPUTER FOR PRODUCING A PULSE SEQUENCE FOR CONTROLLING A MAGNETIC RESONANCE IMAGING APPARATUS
First Claim
1. A method for producing a pulse sequence for controlling a magnetic resonance imaging apparatus as part of an inversion recovery measurement sequence for generating magnetic resonance image data on a subject under examination, in which, in order to acquire magnetic resonance raw data, different transverse magnetizations are excited in a plurality of partial volumes to be imaged, and are used for the imaging, wherein the pulse sequence comprises a start sequence followed by an excitation sequence, said method comprising:
- forming the start sequence in a computer by series arrangement of a succession of at least two initial inversion pulses for inverting partial volumes; and
forming the excitation sequence in said computer by series arrangement of excitation blocks and additional inversion pulses with each excitation block being followed by additional inversion pulses, so that excitation blocks and additional inversion pulses always alternate.
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Accused Products
Abstract
In a pulse sequence that is produced and used for controlling a magnetic resonance imaging system as part of an inversion recovery measurement sequence, a number of partial volumes to be imaged are excited, wherein the pulse sequence includes a start sequence followed by an excitation sequence. The start sequence is series arrangement of a succession of at least two initial inversion pulses for inverting partial volumes. The excitation sequence is series arrangement of excitation blocks and additional inversion pulses, with each excitation block being followed by additional inversion pulses, so that excitation blocks and additional inversion pulses always alternate.
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Citations
14 Claims
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1. A method for producing a pulse sequence for controlling a magnetic resonance imaging apparatus as part of an inversion recovery measurement sequence for generating magnetic resonance image data on a subject under examination, in which, in order to acquire magnetic resonance raw data, different transverse magnetizations are excited in a plurality of partial volumes to be imaged, and are used for the imaging, wherein the pulse sequence comprises a start sequence followed by an excitation sequence, said method comprising:
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forming the start sequence in a computer by series arrangement of a succession of at least two initial inversion pulses for inverting partial volumes; and forming the excitation sequence in said computer by series arrangement of excitation blocks and additional inversion pulses with each excitation block being followed by additional inversion pulses, so that excitation blocks and additional inversion pulses always alternate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A computer for producing a pulse sequence for controlling a magnetic resonance imaging apparatus as part of an inversion recovery measurement sequence for generating magnetic resonance image data on a subject under examination, in which, in order to acquire magnetic resonance raw data, different transverse magnetizations are excited in a plurality of partial volumes to be imaged, and are used for the imaging, wherein the pulse sequence comprises a start sequence followed by an excitation sequence, said computer comprising:
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a processor configured to form the start sequence by series arrangement of a succession of at least two initial inversion pulses for inverting partial volumes; and said processor being configured to form the excitation sequence in said computer by series arrangement of excitation blocks and additional inversion pulses with each excitation block being followed by additional inversion pulses, so that excitation blocks and additional inversion pulses always alternate.
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11. A method for operating a magnetic resonance apparatus comprising:
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producing a pulse sequence for controlling said magnetic resonance imaging apparatus as part of an inversion recovery measurement sequence for generating magnetic resonance image data on a subject under examination, in which, in order to acquire magnetic resonance raw data, different transverse magnetizations are excited in a plurality of partial volumes to be imaged, and are used for the imaging, wherein the pulse sequence comprises a start sequence followed by an excitation sequence; forming the start sequence in a computer by series arrangement of a succession of at least two initial inversion pulses for inverting partial volumes; and forming the excitation sequence in said computer by series arrangement of excitation blocks and additional inversion pulses with each excitation block being followed by additional inversion pulses, so that excitation blocks and additional inversion pulses always alternate. - View Dependent Claims (12)
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13. A magnetic resonance (MR) imaging apparatus comprising:
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an MR data acquisition scanner; a computer configured to produce a pulse sequence for controlling said MR data acquisition scanner as part of an inversion recovery measurement sequence for generating magnetic resonance image data on a subject under examination, in which, in order to acquire magnetic resonance raw data, different transverse magnetizations are excited in a plurality of partial volumes to be imaged, and are used for the imaging, wherein the pulse sequence comprises a start sequence followed by an excitation sequence; said computer being configured to form the start sequence by series arrangement of a succession of at least two initial inversion pulses for inverting partial volumes; and said computer being configured to form the excitation sequence by series arrangement of excitation blocks and additional inversion pulses with each excitation block being followed by additional inversion pulses, so that excitation blocks and additional inversion pulses always alternate.
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14. A non-transitory, computer-readable data storage medium encoded with programming instructions for producing a pulse sequence for controlling a magnetic resonance imaging apparatus as part of an inversion recovery measurement sequence for generating magnetic resonance image data on a subject under examination, in which, in order to acquire magnetic resonance raw data, different transverse magnetizations are excited in a plurality of partial volumes to be imaged, and are used for the imaging, wherein the pulse sequence comprises a start sequence followed by an excitation sequence, said storage medium being loaded into a computer and said programming instructions causing said computer to:
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form the start sequence in a computer by series arrangement of a succession of at least two initial inversion pulses for inverting partial volumes; and form the excitation sequence in said computer by series arrangement of excitation blocks and additional inversion pulses with each excitation block being followed by additional inversion pulses, so that excitation blocks and additional inversion pulses always alternate.
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Specification