公开(公告)号：US20140302258A1

公开(公告)日：2014-10-09

申请号：US13859586

申请日：2013-04-09

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Jean-Baptiste Mathieu ,  Saban Kurucay ,  Thomas Kwok-Fah Foo ,  Yanzhe Yang

IPC: G01R33/38

CPC classification number: G01R33/3858 ,  G01R33/3856 ,  H01F41/04

Abstract: The embodiments disclosed herein relate generally to magnetic resonance imaging systems and, more specifically, to the manufacturing of a gradient coil assembly for magnetic resonance imaging (MRI) systems. For example, in one embodiment, a method of manufacturing a gradient coil assembly for a magnetic resonance imaging system includes depositing a first layer comprising a base material onto a surface to form a substrate and depositing a second layer onto the first layer. The second layer may enable bonding between a conductor material and the substrate. The method also includes depositing a third layer onto the second layer using a consolidation process. The consolidation process uses the conductor material to form at least a portion of a gradient coil.

Abstract translation: 本文公开的实施例一般涉及磁共振成像系统，更具体地涉及用于磁共振成像（MRI）系统的梯度线圈组件的制造。 例如，在一个实施例中，制造用于磁共振成像系统的梯度线圈组件的方法包括将包括基材的第一层沉积到表面上以形成衬底并将第二层沉积到第一层上。 第二层可以实现导体材料和衬底之间的接合。 该方法还包括使用固结方法将第三层沉积到第二层上。 固结过程使用导体材料形成梯度线圈的至少一部分。

公开(公告)号：US20140275962A1

公开(公告)日：2014-09-18

申请号：US13797395

申请日：2013-03-12

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Thomas Kwok-Fah Foo ,  Lowell Scott Smith ,  Kai Erik Thomenius ,  Sandeep Narendra Gupta ,  Luca Marinelli ,  Kedar Anil Patwardhan ,  Dominic Michael Graziani

IPC: A61N2/00

CPC classification number: A61N2/002 ,  A61B5/0035 ,  H05K999/99

Abstract: Methods and systems using magnetic resonance and ultrasound for tracking anatomical targets for radiation therapy guidance are provided. One system includes a patient transport configured to move a patient between and into a magnetic resonance (MR) system and a radiation therapy (RT) system and an ultrasound transducer coupled to the patient transport, wherein the ultrasound transducer is configured to acquire four-dimensional (4D) ultrasound images concurrently with one of an MR acquisition or an RT radiation therapy session. The system also includes a controller having a processor configured to use the 4D ultrasound images and MR images from the MR system to control at least one of a photon beam spatial distribution or intensity modulation generated by the RT system.

Abstract translation: 提供了使用磁共振和超声波跟踪放射治疗指导解剖靶标的方法和系统。 一种系统包括被配置为将患者移动到磁共振（MR）系统和辐射治疗（RT）系统之间的患者输送和耦合到患者输送的超声换能器，其中超声换能器被配置为获取四维 （4D）超声图像与MR采集或RT放射治疗会话之一同时进行。 该系统还包括具有处理器的控制器，其被配置为使用来自MR系统的4D超声图像和MR图像来控制RT系统产生的光子束空间分布或强度调制中的至少一个。

公开(公告)号：US12263017B2

公开(公告)日：2025-04-01

申请号：US16051723

申请日：2018-08-01

Applicant: General Electric Company

Inventor： Dattesh Dayanand Shanbhag ,  Chitresh Bhushan ,  Arathi Sreekumari ,  Andre de Almeida Maximo ,  Rakesh Mullick ,  Thomas Kwok-Fah Foo

IPC: A61B5/00 ,  A61B5/055

Abstract: The present disclosure relates to use of a workflow for automatic prescription of different radiological imaging scan planes across different anatomies and modalities. The automated prescription of such imaging scan planes helps ensure contiguous visualization of the different landmark structures. Unlike prior approaches, the disclosed technique determines the necessary planes using the localizer images itself and does not explicitly segment or delineate the landmark structures to perform plane prescription.

公开(公告)号：US11304683B2

公开(公告)日：2022-04-19

申请号：US16570859

申请日：2019-09-13

Applicant: General Electric Company

Inventor： Jhimli Mitra ,  Thomas Kwok-Fah Foo ,  Desmond Teck Beng Yeo ,  David Martin Mills ,  Soumya Ghose ,  Michael John MacDonald

IPC: A61B8/08 ,  A61B5/055 ,  A61B5/00 ,  A61B10/02 ,  G06T7/33 ,  G16H50/20 ,  G16H30/40

Abstract: The subject matter discussed herein relates to multi-modal image alignment to facilitate biopsy procedures and post-biopsy procedures. In one such example, prostate structures (or other suitable anatomic features or structures) are automatically segmented in pre-biopsy MR and pre-biopsy ultrasound images. Thereafter, pre-biopsy MR and pre-biopsy ultrasound contours are aligned. To account for non-linear deformation of the imaged anatomic structure, a patient-specific transformation model is trained via deep learning based at least in part on the pre-biopsy ultrasound images. The pre-biopsy ultrasound images that are overlaid with the pre-biopsy MR contours and based off the deformable transformation model are then aligned with the biopsy ultrasound images. Such real-time alignment using multi-modality imaging techniques provides guidance during the biopsy and post-biopsy system.

公开(公告)号：US10957010B2

公开(公告)日：2021-03-23

申请号：US16534785

申请日：2019-08-07

Applicant: General Electric Company

Inventor： Soumya Ghose ,  Jhimli Mitra ,  David Martin Mills ,  Lowell Scott Smith ,  Desmond Teck Beng Yeo ,  Thomas Kwok-Fah Foo

IPC: G06T3/00 ,  G06T11/00 ,  A61B8/08 ,  G01R33/56

Abstract: The subject matter discussed herein relates to the automatic, real-time registration of pre-operative magnetic resonance imaging (MRI) data to intra-operative ultrasound (US) data (e.g., reconstructed images or unreconstructed data), such as to facilitate surgical guidance or other interventional procedures. In one such example, brain structures (or other suitable anatomic features or structures) are automatically segmented in pre-operative and intra-operative ultrasound data. Thereafter, anatomic structure (e.g., brain structure) guided registration is applied between pre-operative and intra-operative ultrasound data to account for non-linear deformation of the imaged anatomic structure. MR images that are pre-registered to pre-operative ultrasound images are then given the same nonlinear spatial transformation to align the MR images with intra-operative ultrasound images to provide surgical guidance.

公开(公告)号：US20200132792A1

公开(公告)日：2020-04-30

申请号：US16169536

申请日：2018-10-24

Applicant: General Electric Company

Inventor： Mark Ernest Vermilyea ,  Justin Michael Ricci ,  Christina Vasil ,  Ek Tsoon Tan ,  Eric William Fiveland ,  Yihe Hua ,  Thomas Kwok-Fah Foo

IPC: G01R33/422 ,  G01R33/385 ,  G01R33/34 ,  A61B5/055

Abstract: An imaging device may include a patient bore to house a subject to be imaged, wherein the patient bore includes one or more bore tubes. The imaging device may also include a gradient coil surrounding, at least partially, the patient bore and a radio frequency (RF) shield located outside the one or more bore tubes. Additionally, the imaging device may include an RF coil located within at least one of the bore tubes.

公开(公告)号：US10438355B2

公开(公告)日：2019-10-08

申请号：US14936903

申请日：2015-11-10

Applicant: General Electric Company

Inventor： Prem Venugopal ,  Thomas Kwok-Fah Foo ,  Christopher Judson Hardy ,  Ek Tsoon Tan

IPC: A61B6/00 ,  G06T7/00 ,  A61B5/02 ,  A61B5/022 ,  A61B5/026 ,  A61B5/055 ,  A61B5/00 ,  A61B5/0285 ,  G06T7/11 ,  G06T7/62 ,  G16H50/30 ,  G16H30/40

Abstract: A method for determining an arterial pulse wave velocity representative of a health condition of a blood vessel includes receiving an image data set comprising a plurality of images of a subject, from an imaging modality. The method also involves determining a blood vessel region in an image from the plurality of images. The method further includes determining a plurality of cross-sectional area values of a blood vessel at a plurality of locations in the blood vessel region, corresponding to a plurality of phases of a cardiac cycle of the subject and determining a plurality of flow rate values of blood flowing in the blood vessel corresponding to the plurality of cross-sectional area values. The method also includes determining a hemodynamic model based on the plurality of cross-sectional area values and the plurality of blood flow rate values and determining the arterial pulse wave velocity based on the hemodynamic model.

公开(公告)号：US20190132813A1

公开(公告)日：2019-05-02

申请号：US16172394

申请日：2018-10-26

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Xin Jiang ,  Tingting Song ,  Desmond Teck Beng Yeo ,  Thomas Kwok-Fah Foo ,  Jing Li

IPC: H04W56/00 ,  G01R33/422 ,  G01R33/32 ,  H04B17/364 ,  H04B17/391

Abstract: A synchronization system based on wireless or limited cable interconnection is disclosed, which includes a central unit comprising a delay compensation module, and RF transmission channels. At least one channel comprises a clock controller and a synchronization controller. The central unit transmits a controlled clock signal and a controlled synchronization signal to the at least one channel, and receives a clock echo signal and a synchronization echo signal. The delay compensation module estimates a clock phase compensation based on the controlled clock signal transmitted and the clock echo signal received, and a synchronization delay compensation based on the controlled synchronization signal transmitted and the synchronization echo signal received. The clock controller and the synchronization controller adjusts respectively a clock signal and a synchronization signal received from the at least one channel based on the clock phase compensation and the synchronization delay compensation. MR systems and a synchronization method are also disclosed.

公开(公告)号：US20180275227A1

公开(公告)日：2018-09-27

申请号：US15924579

申请日：2018-03-19

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Tingting Song ,  Desmond Teck Beng Yeo ,  Thomas Kwok-Fah Foo ,  Xin Jiang

IPC: G01R33/36 ,  G01R33/422

CPC classification number: G01R33/3614 ,  G01R33/3415 ,  G01R33/422 ,  G01R33/5659

Abstract: An RF coil array for use in MRI is disclosed, which includes a plurality of transmit coil elements and a plurality of RF power amplifiers. Each RF power amplifier is integrated with at least one transmit coil element for driving the at least one transmit coil element. An MRI transmit array is also disclosed, which includes a plurality of RF transmitters for generating a plurality of RF signals, the RF coil array above-mentioned, and a DC voltage source for providing a DC voltage to the plurality of transmit coil elements. The RF coil array further includes an RF shield for shielding the plurality of transmit coil elements from interacting with magnet cryostat and gradient coil elements. The plurality of RF power amplifiers are connected with respective RF transmitters and configured for power amplification of the RF signals from the respective RF transmitters, and the plurality of transmit coil elements are configured for transmitting respective amplified RF signals.

公开(公告)号：US20170030990A1

公开(公告)日：2017-02-02

申请号：US14814671

申请日：2015-07-31

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Martin Andreas Janich ,  Thomas Kwok-Fah Foo ,  Anja Christina Sophie Brau

IPC: G01R33/567 ,  G06T11/00 ,  G01R33/561 ,  A61B5/055 ,  A61B5/00 ,  G06T7/00 ,  G06K9/46

CPC classification number: A61B5/7285 ,  A61B5/055 ,  G01R33/5601 ,  G01R33/5602 ,  G01R33/5611 ,  G01R33/56563

Abstract: A system and method for cardiac magnetic resonance imaging (MRI) is disclosed that facilitates the phase sensitive reconstruction of inversion recovery magnetization prepared data with minimal scan time penalty by acquiring the phase reference data with low spatial resolution. The technique can be applied for the investigation of myocardial tissue characterization by acquiring 2D and/or 3D late Gadolinium enhancement (LGE) scans after the injection of a Gadolinium contrast agent. Regional areas of contrast accumulation in scarred myocardial tissue appear bright on these T1-weighted images. As disclosed here the proposed technique for phase sensitive inversion recovery acquisition with low resolution phase reference is robust against changes in inversion time, change in T1 due to Gadolinium contrast washout, high signal-to-noise ratio, and low scan time penalty compared to magnitude LGE.

Abstract translation: 公开了用于心脏磁共振成像（MRI）的系统和方法，其通过以低空间分辨率获取相位参考数据来促进具有最小扫描时间损失的反转恢复磁化准备数据的相敏感重建。 该技术可以应用于通过在注射钆造影剂之后获取2D和/或3D晚期钆增强（LGE）扫描来研究心肌组织表征。 瘢痕性心肌组织对比积累的区域区域在这些T1加权图像上呈现明亮。 如本文所揭示的，具有低分辨率相位参考的相位敏感反演恢复采集的所提出的技术对于反转时间的变化是鲁棒的，由于钆对比度冲洗，高信噪比和低扫描时间损失，T1的变化与幅度 LGE。