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    Systems and methods for magnetic material imaging
    11.
    发明授权
    Systems and methods for magnetic material imaging 有权

    公开(公告)号：US09846206B2

    公开(公告)日：2017-12-19

    申请号：US13970339

    申请日：2013-08-19

    Applicant: General Electric Company

    Inventor： Dominic Michael Graziani ,  Thomas Kwok-Fah Foo ,  Luca Marinelli ,  Daniel Eugene Meyer ,  Bruce Allan Hay

    IPC: G01N27/72 ,  A61B5/00 ,  G01R33/12 ,  A61B5/05

    CPC classification number: G01R33/1276 ,  A61B5/00 ,  A61B5/0515

    Abstract: Magnetic material imaging (MMI) system including first and second sets of field-generating coils. Each of the field-generating coils of the first and second sets has an elongated segment that extends along an imaging axis of the medical imaging system. The imaging axis extends through a region-of-interest (ROI) of an object. The elongated segments of the first set of field-generating coils are positioned opposite the elongated segments of the second set of field-generating coils and the ROI is located between the first and second sets of field-generating coils. The MMI system also includes a coil-control module configured to control a flow of current through the first and second sets of field-generating coils to generate a selection field and to generate a drive field. The selection and drive fields combine to form a movable 1D field free region (FFR) that extends through the ROI.

    METHOD AND APPARATUS FOR AUTOMATED TRACKING OF VESSEL MOVEMENT USING MR IMAGING
    13.
    发明申请
    METHOD AND APPARATUS FOR AUTOMATED TRACKING OF VESSEL MOVEMENT USING MR IMAGING 有权
    使用MR成像自动跟踪船舶运动的方法和装置

    公开(公告)号：US20130131492A1

    公开(公告)日：2013-05-23

    申请号：US13746983

    申请日：2013-01-22

    Applicant: GENERAL ELECTRIC COMPANY

    Inventor： Manojkumar Saranathan ,  Christopher Judson Hardy ,  Thomas Kwok-Fah Foo

    IPC: A61B5/055

    CPC classification number: G01R33/56509 ,  A61B5/0037 ,  A61B5/055 ,  A61B5/7285 ,  G01R33/56 ,  G01R33/5673

    Abstract: A system and method is disclosed for tracking a moving object using magnetic resonance imaging. The technique includes acquiring a scout image scan having a number of image frames and extracting non-linear motion parameters from the number of image frames of the scout image scan. The technique includes prospectively shifting slice location using the non-linear motion parameters between slice locations while acquiring a series of MR images. The system and method are particularly useful in tracking coronary artery movement during the cardiac cycle to acquire the non-linear components of coronary artery movement during a diastolic portion of the R-R interval.

    Abstract translation: 公开了一种使用磁共振成像跟踪运动物体的系统和方法。 该技术包括获取具有多个图像帧的侦察图像扫描，并从侦察图像扫描的图像帧的数量中提取非线性运动参数。 该技术包括使用切片位置之间的非线性运动参数前进移位切片位置，同时获取一系列MR图像。 该系统和方法在心脏周期期间跟踪冠状动脉运动特别有用，以在R-R间期的舒张期期间获得冠状动脉运动的非线性分量。

    VASCULAR ASSESSMENT USING ACOUSTIC SENSING
    15.
    发明申请
    VASCULAR ASSESSMENT USING ACOUSTIC SENSING 有权

    公开(公告)号：US20220071497A1

    公开(公告)日：2022-03-10

    申请号：US17422653

    申请日：2020-01-16

    Applicant: General Electric Company

    Inventor： Prem Venugopal ,  Peter Michael Edic ,  Thomas Kwok-Fah Foo

    IPC: A61B5/02 ,  A61B5/00 ,  G16H50/20 ,  G16H50/70 ,  G16H50/30 ,  G16H30/40 ,  G06T7/00

    Abstract: The present disclosure relates to the use of prior images acquired of the patient and acoustic signature from a vascular region of interest to create a patient-specific model of sound propagation from the vascular region. This model is then used to monitor the progression of disease in the vascular region of interest, using subsequently-acquired acoustic signals. In an alternate embodiment, population-based images and/or population-based acoustic signatures are used to generate predictive data when a priori patient-specific imaging information is not available and this data is used to characterize or categorize at-risk patients suspected of coronary artery disease, but without prior cardiac events.

    Method and systems for iteratively reconstructing multi-shot, multi-acquisition MRI data
    17.
    发明授权
    Method and systems for iteratively reconstructing multi-shot, multi-acquisition MRI data 有权

    公开(公告)号：US10551458B2

    公开(公告)日：2020-02-04

    申请号：US15637708

    申请日：2017-06-29

    Applicant: General Electric Company

    Inventor： Ek Tsoon Tan ,  Giang-Chau Ngo ,  Christopher Judson Hardy ,  Thomas Kwok-Fah Foo

    IPC: G01R33/48 ,  G01R33/56

    Abstract: A magnetic resonance (MR) imaging method performed by an MR imaging system includes acquiring MR data in multiple shots and multiple acquisitions (NEX), separately reconstructing the component magnitude and phase of images corresponding to the multiple shots and multiple NEX, removing the respective phase from each of the images, and combining, after removal of the respective phase, the shot images and the NEX images to produce a combined image. The method further includes using the combined image to calculate the full k-space data for each shot and NEX and replacing unacquired k-space data points with calculated k-space data points. The operations are repeated until the combined image reaches a convergence.

    SYSTEMS AND METHODS FOR MAGNETIC MATERIAL IMAGING
    19.
    发明申请
    SYSTEMS AND METHODS FOR MAGNETIC MATERIAL IMAGING 有权
    用于磁性材料成像的系统和方法

    公开(公告)号：US20150073264A1

    公开(公告)日：2015-03-12

    申请号：US14025509

    申请日：2013-09-12

    Applicant: General Electric Company

    Inventor： Michael Dominic Graziani ,  Thomas Kwok-Fah Foo ,  Luca Marinelli

    IPC: A61B5/06

    CPC classification number: A61B5/062 ,  A61B5/0515

    Abstract: Magnetic material imaging (MMI) system including a first array of elongated wire segments that extend substantially parallel to an imaging plane. The imaging plane is configured to extend through a region-of-interest (ROI) of an object. The MMI system also includes a second array of elongated wire segments that extend substantially parallel to the imaging plane. The first and second arrays of wire segments are spaced apart with the imaging plane therebetween. The first and second arrays of wire segments form segment pairs. Each segment pair includes a wire segment of the first array and a wire segment of the second array, wherein the wire segments substantially coincide along a segment plane. The MMI system also includes a phase-control module configured to control a flow of current through the wire segments of the segment pairs to generate and move a one-dimensional field free region (1D FFR) within the imaging plane.

    Abstract translation: 磁性材料成像（MMI）系统包括基本上平行于成像平面延伸的细长线段的第一阵列。 成像平面被配置为延伸通过对象的感兴趣区域（ROI）。 MMI系统还包括基本上平行于成像平面延伸的细长线段的第二阵列。 线段的第一和第二阵列与它们之间的成像平面间隔开。 线段的第一和第二阵列形成段对。 每个段对包括第一阵列的线段和第二阵列的线段，其中线段基本上沿着线段平行重合。 MMI系统还包括相位控制模块，该相位控制模块被配置为控制通过分段对的线段的电流的流动，以在成像平面内产生和移动一维无场区域（1D FFR）。

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