公开(公告)号：US20180156880A1

公开(公告)日：2018-06-07

申请号：US15571585

申请日：2016-04-28

Applicant: General Electric Company

Inventor： Jian Lin ,  Jean-Baptiste Mathieu ,  Yihe Hua ,  Seung-Kyun Lee ,  Dominic Michael Graziani

IPC: G01R33/385 ,  A61N1/08

CPC classification number: G01R33/3856 ,  A61B5/055 ,  A61N1/086 ,  G01R33/385 ,  G01R33/3858

Abstract: A gradient coil unit having a peripheral surface enclosing a magnetic gradient axis, and a middle plane substantially perpendicular to the magnetic gradient axis at a middle portion of the gradient coil unit, comprising at least one folded coil which comprises a first set of curved conductors disposed on a first curved surface; a second set of curved conductors disposed on a second curved surface outside the first curved surface and substantially overlapping the first set of curved conductors; and a set of connecting conductors connecting selected curved conductors in the first set with selected curved conductors in the second set; wherein the set of connecting conductors is located at a first side of the middle plane.

公开(公告)号：US20140105476A1

公开(公告)日：2014-04-17

申请号：US13652231

申请日：2012-10-15

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Selaka Bandara Bulumulla ,  Ileana Hancu ,  Seung-Kyun Lee

IPC: G06K9/00

CPC classification number: G06K9/00 ,  A61B5/055 ,  A61B5/4869 ,  G01R33/246 ,  G01R33/48 ,  G06K9/3233 ,  G06K9/342 ,  G06T11/003

Abstract: Exemplary embodiments of the present disclosure are directed to estimating an electrical property of tissue using MR images. Complex values having real components and imaginary components are generated and are associated with pixels in one or more MR images that corresponding to a region of tissue for which the electrical property is constant. An estimated value of the electrical property for the region of tissue is determined based on a least squared error estimation applied to the complex values.

Abstract translation: 本公开的示例性实施例涉及使用MR图像估计组织的电性质。 生成具有真实分量和虚部的复数值，并且与一个或多个MR图像中的对应于电性能不变的组织区域的像素相关联。 基于应用于复数值的最小二乘误差估计来确定组织区域的电特性的估计值。

公开(公告)号：US20170139022A1

公开(公告)日：2017-05-18

申请号：US14938891

申请日：2015-11-12

Applicant: General Electric Company

Inventor： Seung-Kyun Lee ,  Eric William Fiveland ,  Joseph Edward Piel, JR. ,  Bruce D. Collick

IPC: G01R33/385 ,  G01R33/38

CPC classification number: G01R33/3854 ,  G01R33/3802 ,  G01R33/3852 ,  G01R33/3858

Abstract: A magnetic resonance imaging system is disclosed. The magnetic resonance imaging system includes a magnet core that generates a magnetic field including a plurality of magnetic field lines. The magnetic resonance imaging system also includes a plurality of gradient coils disposed along the magnet core and a plurality of gradient amplifiers. Further, the magnetic resonance imaging system includes a plurality of bus-bar conductors coupling a corresponding gradient coil of the plurality of gradient coils and a corresponding gradient amplifier of the plurality of gradient amplifiers. The plurality of bus-bar conductors is disposed along at least one of a first path extending along the plurality of magnetic field lines and a second path extending along a substantially linear direction from the corresponding gradient coil to a fringe region of the magnetic field to reduce an effect of Lorentz force on the plurality of bus-bar conductors.

公开(公告)号：US20160278746A1

公开(公告)日：2016-09-29

申请号：US14671252

申请日：2015-03-27

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Ileana Hancu ,  Robert David Darrow ,  Eric William Fiveland ,  Mauricio Castillo-Effen ,  Seung-Kyun Lee

IPC: A61B10/02 ,  A61B5/00 ,  A61B90/11 ,  A61B5/055

CPC classification number: A61B10/0266 ,  A61B5/004 ,  A61B5/055 ,  A61B5/06 ,  A61B5/4312 ,  A61B34/20 ,  A61B90/11 ,  A61B2034/2048 ,  A61B2505/05 ,  G01R33/4808

Abstract: The system and method of the invention pertains to an MR-guided breast biopsy procedure, specifically as to real-time tracking and navigation of a biopsy device. More particularly, the system utilizes a diagnostic imaging modality such as magnetic resonance imaging (MRI) to locate lesions in a human breast while utilizing an inertial measurement unit (IMU) to track advancement of a biopsy device in real-time. The invention simplifies the workflow of MRI-guided breast biopsies, shortens the time needed to perform the biopsy, decreases cost, and increases accuracy. This is achieved by enabling real-time visualization of the biopsy device as it advances towards the targeted lesion.

Abstract translation: 本发明的系统和方法涉及MR指导的乳腺活检程序，具体涉及活检装置的实时跟踪和导航。 更具体地，系统利用诸如磁共振成像（MRI）的诊断成像模式来定位人乳房中的病变，同时利用惯性测量单元（IMU）来实时跟踪活检装置的进展。 本发明简化了MRI指导乳腺活组织检查的工作流程，缩短了进行活组织检查所需的时间，降低了成本，提高了准确性。 这是通过使活检装置在朝向目标病变的方向上实时可视化来实现的。

公开(公告)号：US10527694B2

公开(公告)日：2020-01-07

申请号：US14938891

申请日：2015-11-12

Applicant: General Electric Company

Inventor： Seung-Kyun Lee ,  Eric William Fiveland ,  Joseph Edward Piel, Jr. ,  Bruce D Collick

IPC: G01R33/385 ,  G01R33/38

Abstract: A magnetic resonance imaging system is disclosed. The magnetic resonance imaging system includes a magnet core that generates a magnetic field including a plurality of magnetic field lines. The magnetic resonance imaging system also includes a plurality of gradient coils disposed along the magnet core and a plurality of gradient amplifiers. Further, the magnetic resonance imaging system includes a plurality of bus-bar conductors coupling a corresponding gradient coil of the plurality of gradient coils and a corresponding gradient amplifier of the plurality of gradient amplifiers. The plurality of bus-bar conductors is disposed along at least one of a first path extending along the plurality of magnetic field lines and a second path extending along a substantially linear direction from the corresponding gradient coil to a fringe region of the magnetic field to reduce an effect of Lorentz force on the plurality of bus-bar conductors.

公开(公告)号：US09149205B2

公开(公告)日：2015-10-06

申请号：US13852723

申请日：2013-03-28

Applicant: General Electric Company

Inventor： Ileana Hancu ,  Kenneth William Rohling ,  Luca Marinelli ,  Eric William Fiveland ,  Seung-Kyun Lee ,  Keith J. Park

IPC: A61B5/05 ,  A61B5/055 ,  A61B5/00

CPC classification number: A61B5/0555 ,  A61B5/708

Abstract: The present disclosure relates to a receive coil assembly for use in magnetic resonance imaging of breast tissue. In certain embodiments the assembly comprises separable parts: a configurable mechanical support and a flexible receive coil array. The adjustability and separability of the receive coil array relative to the mechanical support allows the receive coil array to substantially conform to the breasts of the patient during imaging.

Abstract translation: 本公开涉及一种用于乳腺组织的磁共振成像的接收线圈组件。 在某些实施例中，组件包括可分离部件：可配置的机械支撑件和柔性接收线圈阵列。 接收线圈阵列相对于机械支撑件的可调节性和可分离性允许接收线圈阵列在成像期间基本上符合患者的乳房。

公开(公告)号：US20140296701A1

公开(公告)日：2014-10-02

申请号：US13852723

申请日：2013-03-28

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Ileana Hancu ,  Kenneth William Rohling ,  Luca Marinelli ,  Eric William Fiveland ,  Seung-Kyun Lee ,  Keith J. Park

IPC: A61B5/055 ,  A61B5/00

CPC classification number: A61B5/0555 ,  A61B5/708

Abstract: The present disclosure relates to a receive coil assembly for use in magnetic resonance imaging of breast tissue. In certain embodiments the assembly comprises separable parts: a configurable mechanical support and a flexible receive coil array. The adjustability and separability of the receive coil array relative to the mechanical support allows the receive coil array to substantially conform to the breasts of the patient during imaging.

Abstract translation: 本公开涉及一种用于乳腺组织的磁共振成像的接收线圈组件。 在某些实施例中，组件包括可分离部件：可配置的机械支撑件和柔性接收线圈阵列。 接收线圈阵列相对于机械支撑件的可调节性和可分离性允许接收线圈阵列在成像期间基本上符合患者的乳房。

公开(公告)号：US20140103925A1

公开(公告)日：2014-04-17

申请号：US13652155

申请日：2012-10-15

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Ileana Hancu ,  Selaka Bandara Bulumulla ,  Seung-Kyun Lee

IPC: G01R33/48 ,  G01R33/32

CPC classification number: G01R33/48 ,  A61B5/055

Abstract: Exemplary embodiments are directed to estimating an electrical property of tissue using Magnetic Resonance (MR) images. In exemplary embodiments, complex MR images of a target tissue are obtained. An estimated value of an electrical property of the target tissue is determined based on complex values of the pixels in the complex MR images. The complex values are proportional to the product of the transmit radio frequency magnetic field and the receive RF magnetic field.

Abstract translation: 示例性实施例涉及使用磁共振（MR）图像估计组织的电性质。 在示例性实施例中，获得目标组织的复杂MR图像。 基于复数MR图像中的像素的复数值来确定目标组织的电特性的估计值。 复数值与发射射频磁场和接收RF磁场的乘积成比例。

公开(公告)号：US10254362B2

公开(公告)日：2019-04-09

申请号：US14927823

申请日：2015-10-30

Applicant: General Electric Company

Inventor： Jean-Baptiste Mathieu ,  Derek Allan Seeber ,  Seung-Kyun Lee

IPC: G01V3/00 ,  G01R33/3875 ,  G01R33/565

Abstract: A method for improving image quality in a magnetic resonance imaging system, the method includes rapidly modulating an electrical current in a matrix shim coil of the magnetic resonance imaging system to compensate high order eddy currents in the system.

公开(公告)号：US09638776B2

公开(公告)日：2017-05-02

申请号：US14466551

申请日：2014-08-22

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Michael Parizh ,  Derek Allan Seeber ,  Seung-Kyun Lee ,  Jean-Baptiste Mathieu

IPC: G01R33/3875

CPC classification number: G01R33/3875

Abstract: Embodiments of the invention are utilized to improve shimming capability while reducing radial space and the volume required to contain active shim coils by nesting the coils of different degrees and orders inside each other and limiting the azimuthal span of the individual saddle coils. This allows two or more radial shim sets to be combined together in the same layer resulting in a significant radial savings that increases the useable portion of an MRI system.