公开(公告)号：US20250123346A1

公开(公告)日：2025-04-17

申请号：US18484860

申请日：2023-10-11

Applicant: GE Precision Healthcare LLC

Inventor： Tisha Anie Abraham ,  Dattesh Dayanand Shanbhag ,  Harsh Kumar Agarwal ,  Sheila Srinivasan Washburn ,  Maggie MeiKei Fung ,  Suchandrima Banerjee ,  Patrick Quarterman ,  Ramesh Venkatesan ,  Sajith Rajamani

IPC: G01R33/54 ,  A61B5/00 ,  A61B5/055

Abstract: A method includes receiving a selection of a scan protocol for the scan of a subject and obtaining localizer images including an anatomic landmark of interest of the subject acquired with the MRI system. The method includes automatically detecting the anatomic landmark of interest in localizer images and determining a geometry plan of the scan including extents of the anatomic landmark of interest. The method includes automatically determining a coverage of the scan to include the anatomic landmark of interest and to match the extents of the anatomic landmark of interest. The method includes obtaining limits on adjustments scan time and one or more image quality parameters for the scan protocol. The method includes generating an updated scan protocol by automatically adjusting one or more parameters of the scan protocol based on the scan protocol, the limits on adjustments, and the coverage of the scan.

公开(公告)号：US12078707B2

公开(公告)日：2024-09-03

申请号：US17716672

申请日：2022-04-08

Applicant: GE PRECISION HEALTHCARE LLC

Inventor： Sudhir Ramanna ,  Ramesh Venkatesan

IPC: G01R33/561 ,  G01R33/483 ,  G06T11/00

CPC classification number: G01R33/5617 ,  G01R33/4835 ,  G06T11/006

Abstract: A magnetic resonance (MR) acquisition acceleration method is provided. The method includes, for each acquisition of a plurality of acquisitions, generating an excitation radio frequency (RF) pulse that excites a plurality of slices, applying, to a subject by an MR system, the excitation RF pulse, and acquiring MR signals of the plurality of slices. A number of slices in the plurality of slices is not a power of two, wherein generating an excitation RF pulse further includes modulating a base excitation RF pulse with a different modulation function during each acquisition. A number of acquisitions is equal to the number of slices, and MR signals from each acquisition are algebraic combinations of MR signals of individual slices. The method also includes reconstructing MR images of individual slices based on the MR signals from the plurality of acquisitions, and outputting the reconstructed images of the individual slices.

公开(公告)号：US20240038368A1

公开(公告)日：2024-02-01

申请号：US18358326

申请日：2023-07-25

Applicant: GE Precision Healthcare LLC

Inventor： Harsh Agarwal ,  Ramesh Venkatesan ,  Ravi Jaiswal ,  Santosh Kumar

IPC: G16H30/40 ,  G06T7/00

CPC classification number: G16H30/40 ,  G06T7/0012 ,  G06T2207/10088 ,  G06T2207/20182

Abstract: The disclosure relates to a system and a method to eliminate noise from imaging data The disclosure provides system comprising a plurality of coils configured to generate one or more data sets and a processor may be configured to receive the data sets from the plurality of coils. The processor may determine an interference removal parameter from the data sets received from the plurality of coils. The interference removal parameter may remove noise from the one or more data sets.

公开(公告)号：US20230324488A1

公开(公告)日：2023-10-12

申请号：US17716672

申请日：2022-04-08

Applicant: GE PRECISION HEALTHCARE LLC

Inventor： Sudhir Ramanna ,  Ramesh Venkatesan

IPC: G01R33/561 ,  G06T11/00

CPC classification number: G01R33/5617 ,  G06T11/006 ,  G06T2211/40

Abstract: A magnetic resonance (MR) acquisition acceleration method is provided. The method includes, for each acquisition of a plurality of acquisitions, generating an excitation radio frequency (RF) pulse that excites a plurality of slices, applying, to a subject by an MR system, the excitation RF pulse, and acquiring MR signals of the plurality of slices. A number of slices in the plurality of slices is not a power of two, wherein generating an excitation RF pulse further includes modulating a base excitation RF pulse with a different modulation function during each acquisition. A number of acquisitions is equal to the number of slices, and MR signals from each acquisition are algebraic combinations of MR signals of individual slices. The method also includes reconstructing MR images of individual slices based on the MR signals from the plurality of acquisitions, and outputting the reconstructed images of the individual slices.

公开(公告)号：US20230251335A1

公开(公告)日：2023-08-10

申请号：US18131626

申请日：2023-04-06

Applicant: GE Precision Healthcare LLC

Inventor： Victor Taracila ,  Robert Steven Stormont ,  Ravi Shankar Jaiswal ,  Fraser John Laing Robb ,  Ramesh Venkatesan ,  Emily Rose Long ,  Jana Michelle Vincent

IPC: G01R33/34 ,  G01R33/343

CPC classification number: G01R33/34084 ,  G01R33/343

Abstract: An RF receiving coil assembly for a magnetic resonance imaging system includes a flexible enclosure. The RF coil assembly also includes an RF coil enclosed within the flexible enclosure. The RF coil includes a plurality of loops, each loop of the plurality of loops having a same perimeter.

公开(公告)号：US11953574B2

公开(公告)日：2024-04-09

申请号：US17715617

申请日：2022-04-07

Applicant: GE PRECISION HEALTHCARE LLC

Inventor： Nitin Jain ,  Rajagopalan Sundaresan ,  Harsh Agarwal ,  Ramesh Venkatesan

IPC: G01R33/561 ,  G01R33/48 ,  G01R33/565

CPC classification number: G01R33/561 ,  G01R33/4818 ,  G01R33/56509

Abstract: A magnetic resonance (MR) imaging acceleration method is provided. The method includes applying, by an MR system, a pulse sequence having a k-space trajectory of a plurality of blades being rotated in k-space, each blade including a plurality of views, wherein the k-space trajectory has an undersampling pattern in the k-space. The method also includes receiving k-space data of a subject acquired by the pulse sequence, reconstructing MR images of the subject based on the k-space data using compressed sensing, and outputting the reconstructed images.

公开(公告)号：US20230243904A1

公开(公告)日：2023-08-03

申请号：US17587404

申请日：2022-01-28

Applicant: GE PRECISION HEALTHCARE LLC

Inventor： Victor Taracila ,  Robert Steven Stormont ,  Ravi Shankar Jaiswal ,  Fraser John Laing Robb ,  Ramesh Venkatesan ,  Emily Rose Long ,  Jana Michelle Vincent

IPC: G01R33/34 ,  G01R33/343

CPC classification number: G01R33/34084 ,  G01R33/343

Abstract: An RF receiving coil assembly for a magnetic resonance imaging system includes a flexible enclosure. The RF coil assembly also includes an RF coil enclosed within the flexible enclosure. The RF coil includes a plurality of loops, each loop of the plurality of loops having a same perimeter.

公开(公告)号：US11280868B2

公开(公告)日：2022-03-22

申请号：US16904801

申请日：2020-06-18

Applicant: GE Precision Healthcare LLC

Inventor： Ramesh Venkatesan ,  Imam Ahmed Shaik ,  Rajagopalan Sundaresan ,  Ashok Kumar P Reddy

IPC: G01R33/56 ,  G01R33/54 ,  G06N3/08 ,  G01R33/34 ,  A61B5/055 ,  G01R33/48

Abstract: Image enhancement systems and methods with variable number of excitation (NEX) acquisitions accelerated using compressed sensing for magnetic resonance (MR) imaging are provided. The MR system comprises a body coil adapted to emit electromagnetic waves onto the anatomy of interest and receive the signals emitted from the anatomy of interest. The system comprises variable number of excitations (NEX) based compressed sensing by acquisition of different points in k-space using the body coil. A first neural network comprising an image enhancement module is provided to reconstruct the body coil images that provides a high-quality image. The high-quality image is stored in an image database. A processor is configured to connect the image database to a second neural network that is a deep learning network trained to assess the image quality and provide feedback to the processor and the first neural network.

公开(公告)号：US10796181B2

公开(公告)日：2020-10-06

申请号：US16134219

申请日：2018-09-18

Applicant: GE Precision Healthcare LLC

Inventor： Kavitha Manickam ,  Ramesh Venkatesan ,  Rakesh Shevde ,  Rajagopalan Sundaresan ,  Prakruthi Jakathe ,  Vignesh Singh ,  Krishnan Varadarajan

IPC: G06K9/00 ,  G06K9/03 ,  G06N3/08 ,  G06N5/04 ,  G06T7/00

Abstract: Methods and systems for addressing malfunction of a medical imaging device are disclosed. The method includes classifying a type of an image artifact in a medical image acquired by the medical imaging device by using a trained machine learning model. The method also includes analyzing system data associated with acquisition of the medical image to identify one or more system parameters that might have contributed to the type of image artifact and providing an action for addressing the image artifact based on the identified one or more system parameters.

公开(公告)号：US20240385274A1

公开(公告)日：2024-11-21

申请号：US18318489

申请日：2023-05-16

Applicant: GE Precision Healthcare LLC

Inventor： Nitin Jain ,  Ashok Kumar P Reddy ,  Rajdeep Das ,  Sajith Rajamani ,  Rajagopalan Sundaresan ,  Harsh Kumar Agarwal ,  Ramesh Venkatesan

IPC: G01R33/58 ,  G01R33/56 ,  G01R33/561 ,  G01R33/563

Abstract: A method includes obtaining k-space data acquired by an MRI scanner from a single channel body coil utilizing a multi-shot EP-DWI pulse sequence and sampling the k-space data for a plurality of shots so that for each shot both a central k-space is fully sampled to form a central calibration region and an outer k-space is partially sampled by a factor equal to a number of shots. The method includes reconstructing an initial fully sampled k-space estimate for each shot utilizing both partial Fourier constant sampling and projection on convex sets reconstruction, wherein the plurality of shots is treated as a plurality of channels for filling in missing k-space for a respective shot. The method includes utilizing a low-rank regularization algorithm in an iterative manner to generate a reconstructed image for each shot, wherein the initial fully sampled k-space estimate for each shot is utilized as an initial guess.