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公开(公告)号：US20220317222A1
公开(公告)日：2022-10-06
申请号：US17656325
申请日：2022-03-24
Applicant: GE PRECISION HEALTHCARE LLC
IPC: G01R33/565 , G01R33/56 , G01R33/58 , G01R33/54
Abstract: Provided in embodiments of the present invention are a magnetic resonance imaging system and a main magnetic field correction method therefor, and a storage medium. Specifically, provided are a magnetic resonance imaging system, a main magnetic field correction method for the magnetic resonance imaging system, and a computer-readable storage medium. The method includes: obtaining an estimated image of a phantom based on a first imaging sequence, the first imaging sequence having a variable resonant frequency; pre-correcting a main magnetic field based on the estimated image; obtaining a scanned image of the phantom based on the pre-corrected main magnetic field; and determining whether the quality of the scanned image is within an acceptable range, and if not, returning to the step of obtaining the estimated image.
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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
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.
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公开(公告)号：US20240119591A1
公开(公告)日：2024-04-11
申请号：US18472515
申请日：2023-09-22
Applicant: GE Precision Healthcare LLC
Inventor： Huayi Wang , Haibo Mei , Jingliang Tian , Tao Wang
IPC: G06T7/00
CPC classification number: G06T7/0012 , G06T2207/20081 , G06T2207/20084 , G06T2207/30004
Abstract: The present application provides a method, a non-transitory computer-readable storage medium, and apparatus for allocating image processing. The method for allocating image processing can include, on the basis of relevant information of a medical image, selecting, according to an allocation list, a learning network model corresponding to the information from a plurality of learning network models. The method can also include performing image processing on the medical image on the basis of the selected learning network model, the allocation list including a list of correspondences between relevant information of medical images and the plurality of learning network models.
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公开(公告)号：US11698432B2
公开(公告)日：2023-07-11
申请号：US17656325
申请日：2022-03-24
Applicant: GE PRECISION HEALTHCARE LLC
IPC: G01R33/565 , G01R33/54 , G01R33/58 , G01R33/56
CPC classification number: G01R33/56563 , G01R33/543 , G01R33/5608 , G01R33/583
Abstract: A main magnetic field correction method for a magnetic resonance imaging system includes: obtaining an estimated image of a phantom based on a first imaging sequence, the first imaging sequence having a variable resonant frequency; pre-correcting a main magnetic field based on the estimated image; obtaining a scanned image of the phantom based on the pre-corrected main magnetic field; and determining whether the quality of the scanned image is within an acceptable range, and if not, returning to the step of obtaining the estimated image.
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