公开(公告)号：US10739421B1

公开(公告)日：2020-08-11

申请号：US16441297

申请日：2019-06-14

Applicant: GE Precision Healthcare LLC

Inventor： LiYa Ma ,  Kun Wang ,  Tao Wang

IPC: G01R33/30 ,  G01R33/54

Abstract: A magnetic resonance imaging (MRI) system includes a table and at least one processor. The table is configured to support a patient, and to travel along a length in a direction of movement through an imaging zone to at least one imaging position. A spatial gradient field varies for at least a portion of the imaging zone. The at least one processor is operably coupled to the table, and configured to obtain a spatial gradient field curve representing magnitude of the spatial gradient field as a function of position along the direction of movement; determine a table speed curve using the spatial gradient field curve, wherein the table speed varies along the direction of movement; and control movement of the table using the table speed curve.