Patent ID: 11959988
Assignee: KONINKLIJKE PHILIPS N.V.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 13:
14. A computer program comprising machine executable instructions for execution by a processor controlling a medical system, wherein execution of the machine executable instructions causes the processor to:
receive measured gradient echo k-space data;
receive an off-resonance phase map;
reconstruct an initial image from the measured gradient echo k-space data;
calculate an upsampled phase map from the off-resonance phase map;
calculate an upsampled image from the initial image;
calculating a modulated image by modulating the upsampled image with the upsampled phase map;
calculate a corrected image comprising iteratively:
calculating updated k-space data by applying a data consistency algorithm to a k-space representation of the modulated image and the measured gradient echo k-space data; and
calculating an updated image from the updated k-space data, wherein calculation of the updated image comprises demodulation by the upsampled phase map wherein calculating the updated image further comprises applying a smoothing algorithm, wherein the modulated image for further iteration results from the updated image.