Optimized acquisition of measured data by means of magnetic resonance technology

A magnetic resonance imager, comprising:

• a magnet unit;
• a gradient unit;
• a radio-frequency unit;
• and
• a controller having an optimization unit, the controller being configured to cause the magnetic resonance imaging system to:
• load desired imaging parameters for an acquisition of echo signals generated after radio frequency (RF) excitation pulses as measured data via an acquisition method,
• wherein gradients to be switched for position encoding of the measured data along radial spokes in k-space have a full strength during an irradiation of the RF excitation pulses,
• wherein the desired imaging parameters comprise a desired field of view and one or more of a desired readout bandwidth, a desired resolution, and a desired matrix size of a matrix in which the measured data is to be stored,
• load a desired flip angle for the irradiation of the RF excitation pulses;
• determine a quantification value of an expected disturbance for the acquisition method based upon the desired imaging parameters,
• perform a check on a feasibility of a correction of the expected disturbance based upon the quantification value;
• when the check confirms the feasibility of the correction-is-verified, perform the acquisition method with the loaded imaging parameters and the loaded flip angle;
• when the check on the feasibility of the correction is negative:
• adjust, based upon the quantification value, one or more of (i) a pulse duration of the RF excitation pulses to be irradiated in the context of the acquisition method to an adjusted pulse duration, (ii) the desired flip angle to an adjusted flip angle, and (iii) at least one of the desired imaging parameters to an at least one adjusted imaging parameter;
• and
• perform the acquisition method with one or more of (i) the adjusted pulse duration, (ii) the adjusted flip angle, and (iii) the at least one adjusted imaging parameter;
• and
• store and/or further process the measured data acquired with the respective acquisition method that is performed.

A non-transitory computer-readable storage medium, comprising instructions that, when executed by a controller of a magnetic resonance imager, cause the magnetic resonance imager to:

• load desired imaging parameters for an acquisition of echo signals generated after radio frequency (RF) excitation pulses as measured data via an acquisition method,
• wherein gradients to be switched for position encoding of the measured data along radial spokes in k-space have a desired strength during an irradiation of the RF excitation pulses,
• wherein the desired imaging parameters comprise a desired field of view and one or more of a desired-readout bandwidth, a desired resolution, and a desired matrix size of a matrix in which the measured data is to be stored,
• loading a desired flip angle for the irradiation of the RF excitation pulses;
• determining a quantification value of an expected disturbance for the acquisition method based upon the desired imaging parameters,
• performing a check on a feasibility of a correction of the expected disturbance based upon the quantification value;
• when the check confirms the feasibility of the correction, performing the acquisition method with the loaded imaging parameters and the loaded flip angle;
• when the check on the feasibility of the correction is negative:
• adjusting, based upon the quantification value, one or more of (i) a pulse duration of the RF excitation pulses to be irradiated in the context of the acquisition method to an adjusted pulse duration, (ii) the desired flip angle to an adjusted flip angle, and (iii) at least one of the desired imaging parameters to an at least one adjusted imaging parameter;
• and
• performing the acquisition method with one or more of (i) the adjusted pulse duration, (ii) the adjusted flip angle, and (iii) the at least one adjusted imaging parameter;
• and
• storing and/or further processing the measured data acquired with the respective acquisition method that is performed.