Patent ID: 11879954
Assignee: SIEMENS HEALTHCARE LIMITED
Field: Measurement (Instruments)
Classification: CPC G  A | IPC A  G

Claim 14:
15. A processing unit for a magnetic resonance (MR) imaging device, comprising:
a memory storing a trained convolutional neural network (CNN) that has been trained with acquisition data acquired in phase and in opposed phase by a DIXON MR method, the acquisition data including: acquisition data that contains chemical shift artifacts (CSAs) in mutually opposite directions, and acquisition data that contains CSA only in one direction, so that the CNN is trained to transform the acquisition data obtained by a DIXON MR method using bipolar readout gradients (fast DIXON MR) such that the acquisition data acquired with the fast DIXON MR method exhibits CSA that arise only in the same direction, wherein the MR imaging device is configured to produce bipolar DIXON MR acquisitions by acquiring the in-phase and opposed-phase echoes of the water protons and fat protons; and
processing circuitry configured to apply the trained CNN to the acquisition data acquired with the fast DIXON MR method to minimize or entirely remove the CSA and to calculate the corrected acquisition data.