Patent ID: 11867781
Assignee: SIEMENS HEALTHCARE LIMITED
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 17:
18. A magnetic resonance facility comprising:
at least one transmit coil configured to emit an excitation signal;
a high-frequency coil arrangement configured to measure a pilot tone signal generated by the excitation signal, wherein the pilot tone signal describes a movement of a patient; and
a control facility configured to:
extract movement information from the pilot tone signal comprising signal components having assigned weightings, wherein the movement information is assigned to a movement component; and
trigger a new recording of image data for a trajectory section of an imaging, perform a movement correction, and/or select magnetic resonance data using the extracted movement information,

wherein, for the extracting of the movement information, a part of an individual component assigned to the movement component is selected by a selection criterion, and
wherein, in determining the individual component and the weightings, a non-negative matrix factorization is performed, in context of which a signal matrix, which is formed from the pilot tone signal, is formulated as a product of a non-negative signal component matrix that describes the individual component and a non-negative weighting matrix that describes the weightings.