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公开(公告)号：US20210251611A1
公开(公告)日：2021-08-19
申请号：US16795220
申请日：2020-02-19
Inventor： Jhimli Mitra , Sudhanya Chatterjee , Thomas Kwok-Fah Foo , Desmond Teck Beng Yeo , Bryan Patrick Bednarz , Sydney Jupitz
Abstract: The present disclosure relates to automatically determining respiratory phases (e.g., end-inspiration/expiration respiratory phases) in real time using ultrasound beamspace data. The respiratory phases may be used subsequently in a therapy or treatment (e.g., image-guided radiation-therapy (IGRT)) for precise dose-delivery. In certain implementations, vessel bifurcation may be tracked and respiration phases determined in real time using the tracked vessel bifurcations to facilitate respiration gating of the treatment or therapy.
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公开(公告)号：US20210208222A1
公开(公告)日：2021-07-08
申请号：US16735228
申请日：2020-01-06
Applicant: General Electric Company
Inventor： Christopher Judson Hardy , Thomas Kwok-Fah Foo , Ek Tsoon Tan
IPC: G01R33/385 , G01R33/563 , G01R33/48
Abstract: The techniques discussed herein relate to a reduced acoustic noise and vibration magnetic resonance imaging (MRI) acquisition. In certain implementations acoustic noise levels for one or more MRI pulse sequences are characterized and modified by limiting the frequencies and amplitudes of the gradient waveforms so as to produce less noise and vibration when the modified waveform is used during an MRI examination. In this manner, relatively low sound pressure levels can be attained.
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公开(公告)号：US20210077077A1
公开(公告)日：2021-03-18
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
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.
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公开(公告)号：US20210042878A1
公开(公告)日：2021-02-11
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
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.
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公开(公告)号：US20200146635A1
公开(公告)日：2020-05-14
申请号：US16184690
申请日：2018-11-08
Applicant: General Electric Company
Inventor： Bo Wang , Thomas Kwok-Fah Foo , Desmond Teck Beng Yeo , Jhimli Mitra
Abstract: A method is provided. The method includes acquiring simultaneously multiple magnetic resonance (MR) images and multiple ultrasound images of an anatomical region of a subject over a scanned duration. The method also includes training an unsupervised deep learning-based deformable registration network. This training includes training a MR registration subnetwork based on the multiple MR images to generate MR deformation and transformation vectors, training an ultrasound registration subnetwork based on the multiple ultrasound images to generate ultrasound deformation and transformation vectors, and training a MR-to-ultrasound subnetwork based the multiple MR images and the multiple ultrasound images to generate MR-to-ultrasound deformation and transformation vectors between corresponding pairs of MR images and ultrasound images at each time point.
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Patent Agency Ranking
公开(公告)号：US20200111210A1
公开(公告)日：2020-04-09
申请号：US16155680
申请日：2018-10-09
Applicant: General Electric Company
Abstract: The present disclosure relates to the classification of images, such as medical images using machine learning techniques. In certain aspects, the technique may employ a distance metric for the purpose of classification, where the distance metric determined for a given image with respect to a homogenous group or class of images is used to classify the image.
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公开(公告)号：US20190219647A1
公开(公告)日：2019-07-18
申请号：US15870519
申请日：2018-01-12
Inventor： Thomas Kwok-Fah Foo , Jhimli Mitra , Bo Wang , Lowell Scott Smith , David Martin Mills , Warren Lee , James Hartman Holmes , Bryan Bednarz , Roberta Marie Strigel
CPC classification number: G01R33/285 , A61B6/502 , A61B8/0841 , A61B8/5269 , A61B10/0233 , A61B2090/378
Abstract: A system and method for providing virtual real-time MRI-guidance for a biopsy outside of a conventional MRI scanner is described. MR images and ultrasound images of a region of a patient's body are simultaneously acquired during a pre-biopsy procedure. Respiratory states that the patient may experience during the biopsy are then determined from the acquired ultrasound images, and each respiratory state is associated with corresponding MR images. The MR images are indexed with their corresponding respiratory state. Ultrasound images are then acquired of the patient during a biopsy procedure. The respiratory state of the patient is determined from the ultrasound images, and the corresponding indexed MR images are displayed.
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公开(公告)号：US20170132788A1
公开(公告)日：2017-05-11
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
CPC classification number: G06T7/0014 , A61B5/02007 , A61B5/022 , A61B5/026 , A61B5/0285 , A61B5/055 , A61B5/7275 , G06T7/11 , G06T7/62 , G06T2207/10088 , G06T2207/30104 , G16H30/40 , G16H50/30
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.
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公开(公告)号：US20170059676A1
公开(公告)日：2017-03-02
申请号：US15248128
申请日：2016-08-26
Applicant: General Electric Company
Inventor： Yanzhe Yang , Steven Robert Hayashi , Kevin Warner Flanagan , Prabhjot Singh , Jian Lin , Jean-Baptiste Mathieu , Kenneth Paul Zarnock , Thomas Kwok-Fah Foo
IPC: G01R33/385
CPC classification number: G01R33/3858
Abstract: A gradient coil comprises a curved conductor, which is tubular and has a general spiral shape. The curved conductor is formed by a process comprising depositing at least one non-conductive material layer by layer to form a substrate, and coating at least a portion of a surface of the substrate with a conductive material. The substrate has a shape matching with the general spiral shape of the curved conductor. Embodiments of the present disclosure further refer to a method for manufacturing the gradient coil.
Abstract translation: 梯度线圈包括弯曲导体，其是管状的并且具有一般的螺旋形状。 弯曲导体通过一种方法形成，该方法包括逐层沉积至少一种非导电材料以形成衬底，并用导电材料涂覆衬底的至少一部分表面。 基板具有与弯曲导体的一般螺旋形状匹配的形状。 本公开的实施例还涉及用于制造梯度线圈的方法。
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公开(公告)号：US09211083B2
公开(公告)日：2015-12-15
申请号：US14025509
申请日：2013-09-12
Applicant: General Electric Company
Inventor： Michael Dominic Graziani , Thomas Kwok-Fah Foo , Luca Marinelli
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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