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US 10,379,187 B2Granted
Method, computer and magnetic resonance apparatus
AssigneeSiemens Healthcare GmbH
InventorsAndreas Greiser, Dominik Paul, Daniel Nico Splitthoff
Life of this patent
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Abstract
In order to enable improved analysis of a magnetic resonance sequence, which provides a number of radio-frequency pulses for the acquisition of magnetic resonance measurement data of an object undergoing investigation by a magnetic resonance apparatus, the magnetic resonance sequence is provided to a computer and a first average radio-frequency output that is present during a first time window of the magnetic resonance sequence is determined. A second average radio-frequency output that is present during a second time window of the magnetic resonance sequence is determined. A value derived from the first average radio-frequency output and the second average radio-frequency output is provided from the computer.
Claims15
A method for analyzing a magnetic resonance sequence, comprising:
- providing a magnetic resonance sequence in a computer, said magnetic resonance sequence comprising a plurality of radio-frequency pulses for acquisition of magnetic resonance measurement data from a subject by operation of a magnetic resonance scanner;
- in said computer, determining a first average radio-frequency output that occurs during a first time window of said magnetic resonance sequence;
- in said computer, determining a second average radio-frequency output that occurs during a second time window of said magnetic resonance sequence, said first and second time windows together covering only a fraction of a total duration of said magnetic resonance sequence;
- in said computer, generating a value derived from said first average radio-frequency output and said second average radio-frequency output;
- and
- in said computer, producing a final version of said magnetic resonance sequence in which said plurality of radio-frequency pulses are designed so as to produce a radio-frequency output according to said derived value, and making said final version of magnetic resonance sequence available from said computer in electronic form, as control signals configured to operate said magnetic resonance scanner according to said final version of the magnetic resonance sequence.
3 more elements
An analysis computer for analyzing a magnetic resonance sequence, comprising:
- a processor configured to receive or generate a magnetic resonance sequence, said magnetic resonance sequence comprising a plurality of radio-frequency pulses for acquisition of magnetic resonance measurement data from a subject by operation of a magnetic resonance scanner;
- said processor being configured to determine a first average radio-frequency output that occurs during a first time window of said magnetic resonance sequence;
- said processor being configured to determine a second average radio-frequency output that occurs during a second time window of said magnetic resonance sequence, said first and second time windows together covering only a fraction of a total duration of said magnetic resonance sequence;
- said processor being configured to generate a value derived from said first average radio-frequency output and said second average radio-frequency output;
- and
- said processor being configured to generate a final version of said magnetic resonance sequence in which said plurality of radio-frequency pulses are designed so as to produce a radio-frequency output according to said derived value, and to make said final version of magnetic resonance sequence available from said computer in electronic form, as control signals configured to operate said magnetic resonance scanner according to said final version of the magnetic resonance sequence.
3 more elements
A magnetic resonance apparatus comprising:
- a magnetic resonance scanner;
- a processor configured to receive or generate a magnetic resonance sequence, said magnetic resonance sequence comprising a plurality of radio-frequency pulses for acquisition of magnetic resonance measurement data from a subject by operation of said magnetic resonance seamier;
- said processor being configured to determine a first average radio-frequency output that occurs during a first time window of said magnetic resonance sequence;
- said processor being configured to determine a second average radio-frequency output that occurs during a second time window of said magnetic resonance sequence, said first and second time windows together covering only a fraction of a total duration of said magnetic resonance sequence;
- said processor being configured to generate a value derived from said first average radio-frequency output and said second average radio-frequency output;
- and
- said processor being configured to generate a final version of said magnetic resonance sequence in which said plurality of radio-frequency pulses are designed so as to produce a radio-frequency output according to said derived value, and making said final version of magnetic resonance sequence available from said computer in electronic form, as control signals configured to operate said magnetic resonance scanner according to said final version of the magnetic resonance sequence.
4 more elements
A non-transitory, computer-readable data storage medium encoded with programming instructions, said storage medium being loaded into a computer of a magnetic resonance apparatus that comprises a magnetic resonance scanner, said programming instructions causing said computer to:
- receive or generate a magnetic resonance sequence, said magnetic resonance sequence comprising a plurality of radio-frequency pulses for acquisition of magnetic resonance measurement data from a subject by operation of said magnetic resonance scanner;
- determine a first average radio-frequency output that occurs during a first time window of said magnetic resonance sequence;
- determine a second average radio-frequency output that occurs during a second time window of said magnetic resonance sequence, said first and second time windows together covering only a fraction of a total duration of said magnetic resonance sequence;
- generate a value derived from said first average radio-frequency output and said second average radio-frequency output;
- and
- generate a final version of said magnetic resonance sequence in which said plurality of radio-frequency pulses are designed so as to produce a radio-frequency output according to said derived value, and make said final version of magnetic resonance sequence available from said computer in electronic form, as control signals configured to operate said magnetic resonance scanner according to said final version of the magnetic resonance sequence.
3 more elements
Dependencies are inferred from the claim text.