公开(公告)号：US10888714B2

公开(公告)日：2021-01-12

申请号：US16166572

申请日：2018-10-22

Applicant: ViewRay Technologies, Inc.

Inventor： James F. Dempsey ,  Iwan Kawrykow

IPC: A61N5/10 ,  G01R33/48

Abstract: Magnetic resonance (MR) guided radiation therapy (MRgRT) enables control over the delivery of radiation based on patient motion indicated by MR imaging (MRI) images captured during radiation delivery. A method for MRgRT includes: simultaneously using one or more radiation therapy heads to deliver radiation and an MRI system to perform MRI; using a processor to determine whether one or more gates are triggered based on at least a portion of MRI images captured during the delivery of radiation; and in response to determining that one or more gates are triggered based on at least a portion of the MRI images captured during the delivery of radiation, suspending the delivery of radiation.

公开(公告)号：US10821303B2

公开(公告)日：2020-11-03

申请号：US16116187

申请日：2018-08-29

Applicant: ViewRay Technologies, Inc.

Inventor： James F. Dempsey

IPC: A61N5/10 ,  A61B5/055 ,  A61B5/00 ,  G01R33/50

Abstract: Edema in tissue of a patient undergoing a course of radiation therapy or treatment can be estimated based on one or more MRI measurements used to measure changes in fluid content of various tissues. A correlation between observed changes in edema and one or more delivered fractions of radiation can be used to drive one or more clinical actions. Methods, systems, articles of manufacture, and the like are described.

公开(公告)号：US20190066309A1

公开(公告)日：2019-02-28

申请号：US16036701

申请日：2018-07-16

Applicant: ViewRay Technologies, Inc.

Inventor： Georgi Gerganov ,  Iwan Kawrykow

IPC: G06T7/20 ,  G06T7/32 ,  G06T7/30

Abstract: A phase correlation method (PCM) can be used for translational and/or rotational alignment of 3D medical images even in the presence of non-rigid deformations between first and second images of a registered volume of a patient.

公开(公告)号：US10055861B2

公开(公告)日：2018-08-21

申请号：US15294533

申请日：2016-10-14

Applicant: ViewRay Technologies, Inc.

Inventor： James F. Dempsey ,  Qingguo Zeng ,  Roger Nana ,  John Lester Patrick ,  Timothy P. Eagan ,  Shmaryu M. Shvartsman

IPC: G06K9/00 ,  G06T11/00 ,  G01R33/48 ,  G01R33/56 ,  G01R33/561 ,  G06T7/00 ,  A61B6/00

CPC classification number: G06T11/006 ,  G01R33/4826 ,  G01R33/5608 ,  G01R33/5611 ,  G06T7/0012 ,  G06T2211/424

Abstract: Systems and methods for tomographic reconstruction of an image include systems and methods for producing images from k-space data. A k-space data set of an imaged object is acquired using know k-space data acquisition systems and methods. A portion of the k-space data set is sampled so as to collect some portion of the k-space data. An image is then reconstructed from the collected portion of the k-space data set according to a convex optimization model.

公开(公告)号：US20180133511A1

公开(公告)日：2018-05-17

申请号：US15851543

申请日：2017-12-21

Applicant: ViewRay Technologies, Inc.

Inventor： James F. Dempsey

IPC: A61N5/10 ,  A61B5/00 ,  G01R33/50 ,  A61B5/055

CPC classification number: A61N5/1064 ,  A61B5/055 ,  A61B5/4836 ,  A61B5/4848 ,  A61B5/4878 ,  A61N5/1048 ,  A61N5/1071 ,  A61N2005/1055 ,  G01R33/50

Abstract: Edema in tissue of a patient undergoing a course of radiation therapy or treatment can be estimated based on one or more MRI measurements used to measure changes in fluid content of various tissues. A correlation between observed changes in edema and one or more delivered fractions of radiation can be used to drive one or more clinical actions. Methods, systems, articles of manufacture, and the like are described.

公开(公告)号：US09966160B2

公开(公告)日：2018-05-08

申请号：US15359503

申请日：2016-11-22

Applicant: ViewRay Techonologies, Inc.

Inventor： Iwan Kawrykow ,  James F. Dempsey ,  Gopinath Kuduvalli ,  Gerald E. Fought ,  Amit Sharma

IPC: G21K1/04 ,  G21K1/02 ,  A61N5/10

CPC classification number: G21K1/046 ,  A61N5/1045 ,  A61N5/1077

Abstract: A collimating system for collimating a radiation beam having a first multileaf collimator and a second multileaf collimator configured such that the radiation beam will pass through the first multileaf collimator before passing through the second multileaf collimator, and pass through the second multileaf collimator before hitting its target. The leaves of the first multileaf collimator and the leaves of the second multileaf collimator may be configured to move independently of one another.

公开(公告)号：US09675271B2

公开(公告)日：2017-06-13

申请号：US13801680

申请日：2013-03-13

Applicant: ViewRay, Incorporated

Inventor： Shmaryu M. Shvartsman ,  James F. Dempsey ,  David Nicolay

IPC: A61B5/055 ,  G01R33/48 ,  A61N5/10 ,  G01R33/3873

CPC classification number: A61B5/055 ,  A61N5/1045 ,  A61N5/1049 ,  A61N2005/1055 ,  A61N2005/1094 ,  G01R33/3873 ,  G01R33/4808

Abstract: Systems and methods for delivery of radiotherapy in conjunction with magnetic resonance imaging in which various conductors, shields and shims may be used to solve issues occurring when radiation therapy equipment is placed in the vicinity of an magnetic resonance imaging system.

公开(公告)号：US20240189623A1

公开(公告)日：2024-06-13

申请号：US18491527

申请日：2023-10-20

Applicant: ViewRay Technologies, Inc.

Inventor： James F. Dempsey ,  Iwan Kawrykow

IPC: A61N5/10 ,  G16H20/40

CPC classification number: A61N5/1039 ,  G16H20/40 ,  A61N2005/1055

Abstract: Systems, methods, and computer software are disclosed that can include receiving a treatment prescription for a patient, obtaining a diagnosis-driven magnetic resonance imaging guided radiotherapy treatment and planning workflow (MRgRT&P workflow) associated with the treatment prescription from a workflow library, the diagnosis-driven MRgRT&P workflow having a parameter list comprising parameters utilized for MRI-guided radiation therapy. With the diagnosis-driven MRgRT&P workflow, any of the following can be performed: imaging with the MRI-guided radiation therapy system utilizing radiation therapy imaging parameters in the parameter list, generating a radiation therapy treatment plan utilizing radiation therapy planning parameters in the parameter list, and/or controlling an MRI-guided radiation therapy system utilizing radiation therapy delivery parameters in the parameter list.

公开(公告)号：US11931602B2

公开(公告)日：2024-03-19

申请号：US17227155

申请日：2021-04-09

Applicant: ViewRay Technologies, Inc.

Inventor： Iwan Kawrykow ,  Thomas Chmielewski ,  James F. Dempsey

IPC: A61N5/10 ,  A61B6/03 ,  G21K1/04 ,  A61B6/06

CPC classification number: A61N5/1081 ,  A61B6/032 ,  A61N5/1031 ,  A61N5/1037 ,  A61N5/1045 ,  A61N5/1049 ,  A61N5/1069 ,  G21K1/046 ,  A61B6/06 ,  A61N5/1039 ,  A61N5/1043 ,  A61N2005/1052 ,  A61N2005/1061 ,  A61N2005/1063 ,  A61N5/1065 ,  A61N2005/1094

Abstract: A system including a diagnostic-quality CT scanner for imaging a patient, the diagnostic-quality CT scanner having an imaging isocenter and a radiation therapy device positioned adjacent the diagnostic-quality CT scanner, the radiation therapy device including a gantry carrying a radiation therapy beam source and having a radiation therapy isocenter separate from the imaging isocenter of the diagnostic-quality CT scanner. The system including a couch configured to position the patient for imaging and for radiation therapy by translating the patient between the diagnostic quality CT scanner and the radiation therapy device.

公开(公告)号：US11892523B2

公开(公告)日：2024-02-06

申请号：US17848277

申请日：2022-06-23

Applicant: ViewRay Technologies, Inc.

Inventor： James F. Dempsey

IPC: G01R33/00 ,  A61B5/055 ,  G01R33/48 ,  A61N5/10 ,  G01R33/28 ,  G01R33/3815 ,  G01R33/385 ,  G01R33/381 ,  G01R33/565 ,  G01R33/483 ,  G01R33/38 ,  G01R33/563

CPC classification number: G01R33/0023 ,  A61B5/055 ,  A61N5/1049 ,  G01R33/0017 ,  G01R33/287 ,  G01R33/385 ,  G01R33/3815 ,  G01R33/48 ,  A61N2005/1055 ,  G01R33/381 ,  G01R33/3806 ,  G01R33/4808 ,  G01R33/4835 ,  G01R33/56325 ,  G01R33/56527 ,  G01R33/56536

Abstract: Improved magnetic resonance imaging systems, methods and software are described including a low field strength main magnet, a gradient coil assembly, an RF coil system, and a control system configured for the acquisition and processing of magnetic resonance imaging data from a patient while utilizing a sparse sampling imaging technique.