-
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.
-
12.发明申请公开(公告)号：US20250093442A1
公开(公告)日：2025-03-20
申请号：US18882525
申请日：2024-09-11
Applicant: GE Precision Healthcare LLC
Inventor： Xuelian Lu , Kun Wang , Jiabin Yao , Yulong Duan
Abstract: A magnetic resonance imaging system, and a radio-frequency signal processing method and radio-frequency coil therefor are provided. The method comprises: receiving, via a radio-frequency coil, a radio-frequency pulse transmitted from a transceiver coil to generate a radio-frequency field that excites a subject to be examined; and sending, via the radio-frequency coil, a magnetic resonance signal received from the subject to be examined to the transceiver coil, wherein the radio-frequency coil and the transceiver coil are electromagnetically coupled.
-
公开(公告)号：US20240215851A1
公开(公告)日：2024-07-04
申请号：US18536636
申请日：2023-12-12
Applicant: GE Precision Healthcare LLC
Inventor： Qingyu Dai , Yuechen Liu , Fan Yang , Siqing Weng , Kun Wang
CPC classification number: A61B5/055 , A61B6/022 , A61B6/5294 , A61B6/541
Abstract: Embodiments of the present invention disclose a magnetic resonance system and a magnetic resonance scanning control method, the method including: acquiring a three-dimensional body model of a scan subject; on the basis of the three-dimensional body model, estimating a value of a first body parameter and a value of a second body parameter of the scan subject; and determining a specific absorption rate on the basis of a site to be scanned of the scan subject, the value of the first body parameter and the value of the second body parameter.
-
公开(公告)号：US11965945B2
公开(公告)日：2024-04-23
申请号：US17893970
申请日：2022-08-23
Applicant: GE Precision Healthcare LLC
Inventor： Yaan Ge , Liyuan Jin , Qingyu Dai , Kun Wang , Qilin Lu
CPC classification number: G01R33/543 , A61B5/0037 , A61B5/055 , A61B5/7264
Abstract: Embodiments of the present application provide a magnetic resonance system and a shimming method and an imaging method thereof. The shimming method comprises: performing a scout scan on a subject to be examined, and obtaining phase data of a plurality of slice positions; determining three-dimensional space static magnetic field information according to the phase data of the plurality of slice positions; and determining a shimming value of a slice in a region of interest according to the three-dimensional space static magnetic field information.
-
公开(公告)号：US20240061058A1
公开(公告)日：2024-02-22
申请号：US17820752
申请日：2022-08-18
Applicant: GE Precision Healthcare LLC
Inventor： Yanchun Zheng , Hong Jiang , Kun Wang , Huaiyu Dong , Hailiang Liu , Saban Kurucay , Jian Cao
IPC: G01R33/34
CPC classification number: G01R33/3403
Abstract: Methods and systems are provided for cooling hot spots on a body coil assembly of an MRI system. In one embodiment, an airflow guide of a body coil assembly of an MRI system comprises a first surface that forms an air passage when the airflow guide is positioned on the body coil assembly, the air passage enclosed by the first surface and a second, outer surface of an RF coil of the body coil assembly, the airflow guide configured to channel cool air generated by a fan to the second, outer surface of the RF coil. The airflow guide may be arranged circumferentially around a portion of the RF coil at one or more ends of the RF coil. The airflow guide may be manufactured as a plurality of airflow guide segments that are glued together.
-
Patent Agency Ranking
16.发明授权公开(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.
-
公开(公告)号：US12272028B2
公开(公告)日：2025-04-08
申请号：US17844288
申请日：2022-06-20
Applicant: GE Precision Healthcare LLC
Inventor： Fuqiang Chen , Kun Wang , Bohao Li , Liya Ma
Abstract: Provided in the present invention are a magnetic resonance imaging system and method, and a computer-readable storage medium. The method comprises: performing a medical scan of a subject and acquiring a first medical image having a first noise interference artifact, and performing an additional scan of the subject to acquire a second medical image, wherein the second medical image has a second noise interference artifact, and the location mapping of the second noise interference artifact in the first medical image is symmetrical to the location of the first noise interference artifact relative to a pixel center of the first medical image; and performing synthesis-related processing on the first medical image and the second medical image to acquire a post-processed image with reduced noise interference artifacts.
-
公开(公告)号：US20250098980A1
公开(公告)日：2025-03-27
申请号：US18895047
申请日：2024-09-24
Applicant: GE Precision Healthcare LLC
Inventor： Yanting Huo , Fan Yang , Kun Wang
Abstract: A magnetic resonance imaging (MRI) scanning system and a method is presented. The method comprises: preconfiguring a plurality of scan configurations, the plurality of scan configurations corresponding to a plurality of scan ranges of a subject to be scanned, and each of the scan configurations comprising an implant-related MRI scan parameter; and executing a scan procedure on the subject to be scanned using at least one of the preconfigured plurality of scan configurations.
-
公开(公告)号：US20240151788A1
公开(公告)日：2024-05-09
申请号：US18501898
申请日：2023-11-03
Applicant: GE Precision Healthcare LLC
Inventor： Fan Yang , Qingyu Dai , Kun Wang , Xiaolan Liu
CPC classification number: G01R33/288 , A61B5/704 , A61B5/743
Abstract: Embodiments of the present invention disclose a magnetic resonance system and a magnetic resonance scanning control method, the method comprising: acquiring a three-dimensional body model of a scan subject; receiving a user operating instruction to mark an implant in the three-dimensional body model of the scan subject to generate a simulated scan subject; acquiring current positioning information of the scan subject on a scanning table, and determining, on the basis of the current positioning information, virtual positioning information of the simulated scan subject in a virtual space, the virtual space comprising distribution information of a spatial field gradient of the magnetic resonance system; and on the basis of the virtual positioning information, evaluating a safety risk related to the spatial field gradient.
-
20.发明授权公开(公告)号：US11876549B2
公开(公告)日：2024-01-16
申请号：US17580967
申请日：2022-01-21
Applicant: GE Precision Healthcare LLC
Inventor： Weiman Jiang , Fan Yang , Kun Wang
IPC: H04B1/3827 , G01R33/28
CPC classification number: H04B1/3838 , G01R33/288
Abstract: In the present invention, provided are a magnetic resonance imaging system, a method for determining a SAR value of a magnetic resonance imaging system, and a computer-readable storage medium. The system comprises a radio-frequency transmitting coil, configured to receive radio-frequency power from a radio-frequency transmitting link and transmit radio-frequency power required for imaging to a scanned object. The system further comprises a reflection coefficient determining module, a resistance value determining module, and a SAR value determining module. The reflection coefficient determining module is configured to acquire a frequency response of a first input reflection coefficient of the radio-frequency transmitting coil when having no load and a frequency response of a second input reflection coefficient thereof when having the scanned object. The resistance value determining module is configured to determine a resistance value of the radio-frequency transmitting coil on the basis of the frequency response of the first input reflection coefficient, and determine a parallel resistance value of the radio-frequency transmitting coil and the scanned object on the basis of the frequency response of the second input reflection coefficient. The SAR value determining module is configured to calculate a SAR value of the scanned object on the basis of the resistance value of the radio-frequency transmitting coil and the parallel resistance value.
-
-
-
-
-
-
-
-
-
Search Results
39
records
(took 0.019 seconds)
