Patent ID: 11946993
Assignee: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 17:
18. The system of claim 17, wherein the correcting, based on the B0 map, a magnetization transfer ratio asymmetry (MTRasym) relating to the ROI includes:
determining multiple deviation values relating to multiple reference offset frequencies based on the B0 map;
determining multiple target offset frequencies among the plurality of offset frequencies based on the multiple deviation values and the multiple reference offset frequencies, each of the multiple target offset frequencies being equal to a sum of one of the multiple reference offset frequencies and a deviation value corresponding to the reference offset frequency; and
correcting the MTRasym relating to the ROI based on the multiple target offset frequencies and multiple signals corresponding to the multiple target offset frequencies among the plurality of signals.