公开(公告)号：US20210236858A1

公开(公告)日：2021-08-05

申请号：US16781823

申请日：2020-02-04

Applicant: General Electric Company

Inventor： Lowell Scott Smith ,  Luca Marinelli ,  Larry Y.L. Mo ,  Antonio Caiafa ,  David Shoudy

IPC: A61N7/00 ,  A61B5/02 ,  A61B8/06 ,  A61B8/00 ,  A61N7/02 ,  A61B8/08

Abstract: In accordance with the present disclosure, ultrasound-based techniques using a combined scanning and treatment array module are employed to find and treat anomalies corresponding to bleed events. By way of example, ultrasound data may be acquired with a scanning array at one or more locations on a patient anatomy. A treatment array may deliver heat to a targeted anomaly to provide therapy. Such a technique may be useful outside of a hospital environment.

公开(公告)号：US10806947B2

公开(公告)日：2020-10-20

申请号：US15277198

申请日：2016-09-27

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: A61B5/00 ,  A61N5/10 ,  A61B5/055 ,  A61B8/08 ,  A61B5/113

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. An ultrasound transducer is also provided that is hands-free and electronically steerable, securely attached to the patient, such that 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. The system determines the previously-acquired correct MR images that represent a specific motion state at some time, t, by a plurality of transformations that allow the representation of the position of fiducial markers in the corresponding ultrasound images to match that of a prior ultrasound acquisition.

公开(公告)号：US09720063B2

公开(公告)日：2017-08-01

申请号：US13718119

申请日：2012-12-18

Applicant: General Electric Company

Inventor： Jonathan Immanuel Sperl ,  Christopher Judson Hardy ,  Luca Marinelli ,  Ek Tsoon Tan ,  Kevin Franklin King ,  Marion Irene Menzel

IPC: G01R33/563

CPC classification number: G01R33/56341

Abstract: Systems and methods for generating a magnetic resonance (MR) image of a tissue are provided. A method includes acquiring MR raw data. The MR raw data corresponds to MR signals obtained at undersampled q-space locations for a plurality of q-space locations that is less than an entirety of the q-space locations and the MR signals at the q-space locations represent the three dimensional displacement distribution of the spins in the imaging voxel. The method also includes performing a joint image reconstruction technique on the MR raw data to exploit structural correlations in the MR signals to obtain a series of accelerated MR images and performing, for each image pixel in each accelerated MR image of the series of accelerated MR images, a compressed sensing reconstruction technique to exploit q-space signal sparsity to identify a plurality of diffusion maps.

公开(公告)号：US20140167753A1

公开(公告)日：2014-06-19

申请号：US13718119

申请日：2012-12-18

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Jonathan Immanuel Sperl ,  Christopher Judson Hardy ,  Luca Marinelli ,  Ek Tsoon Tan ,  Kevin Franklin King ,  Marion Irene Menzel

IPC: G01R33/48

CPC classification number: G01R33/56341

Abstract: Systems and methods for generating a magnetic resonance (MR) image of a tissue are provided. A method includes acquiring MR raw data. The MR raw data corresponds to MR signals obtained at undersampled q-space locations for a plurality of q-space locations that is less than an entirety of the q-space locations and the MR signals at the q-space locations represent the three dimensional displacement distribution of the spins in the imaging voxel. The method also includes performing a joint image reconstruction technique on the MR raw data to exploit structural correlations in the MR signals to obtain a series of accelerated MR images and performing, for each image pixel in each accelerated MR image of the series of accelerated MR images, a compressed sensing reconstruction technique to exploit q-space signal sparsity to identify a plurality of diffusion maps.

Abstract translation: 提供了用于产生组织的磁共振（MR）图像的系统和方法。 一种方法包括获取MR原始数据。 MR原始数据对应于在低于q空间位置的整体的多个q空间位置处在欠采样q空间位置处获得的MR信号，并且在q空间位置处的MR信号表示三维位移 旋转成像体素的分布。 该方法还包括对MR原始数据执行联合图像重建技术以利用MR信号中的结构相关性，以获得一系列加速MR图像，并针对一系列加速MR图像的每个加速MR图像中的每个图像像素执行 ，一种利用q空间信号稀疏度来识别多个扩散图的压缩感测重建技术。