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    SPLIT MAGNETIC RESONANCE IMAGING SYSTEM
    23.
    发明申请
    SPLIT MAGNETIC RESONANCE IMAGING SYSTEM 审中-公开
    分立磁共振成像系统

    公开(公告)号：US20160356869A1

    公开(公告)日：2016-12-08

    申请号：US15242452

    申请日：2016-08-19

    Applicant: ViewRay Technologies, Inc.

    Inventor： James F. Dempsey ,  John L. Patrick ,  Shmaryu M. Shvartsman ,  Gordon D. Demeester

    IPC: G01R33/38 ,  G01R33/48 ,  A61B5/055 ,  G01R33/385

    Abstract: A magnetic resonance imaging (MRI) system includes a split magnet system having a pair of MRI magnet housings separated by gap. A pair of main MRI magnets are disposed within respective MRI magnet housings. A plurality of buttress assemblies are attached to the MRI magnet housings. Some or all of the buttress assemblies are provided with removable connections to the MRI magnet housings. This allows for partial disassembly of the MRI system for improved transport and maneuverability for relocating the MRI system. The MRI system can include a gantry in the gap for supporting a radiation therapy system. Also, the removably buttress assemblies can be used for housing conduits, such as electrical and fluid conduits, between the pair of MRI magnet housings.

    Abstract translation: 磁共振成像（MRI）系统包括具有由间隙隔开的一对MRI磁体壳体的分裂磁体系统。 一对主磁共振磁铁磁铁设置在相应的磁共振磁体外壳内。 多个支撑组件附接到MRI磁体壳体。 部分或全部支撑组件设置有与磁共振磁体外壳的可拆卸连接。 这允许MRI系统的部分拆卸以改善用于重新定位MRI系统的运输和机动性。 MRI系统可以包括用于支撑放射治疗系统的间隙中的台架。 此外，可移除的支撑组件可以用于在一对MRI磁体壳体之间的壳体导管，例如电气和流体导管。

    SYSTEMS, METHODS AND COMPUTER SOFTWARE FOR OPTIMIZED RADIATION THERAPY
    25.
    发明申请
    SYSTEMS, METHODS AND COMPUTER SOFTWARE FOR OPTIMIZED RADIATION THERAPY 有权

    公开(公告)号：US20230125812A1

    公开(公告)日：2023-04-27

    申请号：US17969540

    申请日：2022-10-19

    Applicant: ViewRay Technologies, Inc.

    Inventor： James F. Dempsey ,  Iwan Kawrykow

    IPC: A61N5/10

    Abstract: Systems, methods, and computer software are disclosed that allow the automatic recalling of imaging parameters from computer memory for controlling an MRI system to perform treatment-day scans of a patient on a treatment couch in a radiotherapy system, prior to treatment. The treatment-day scans can be automatically initialized and the MRI system can then be controlled to perform the treatment-day scans according to the recalled imaging parameters. Reoptimized radiation treatment plan(s) can be automatically generated and predicted doses to anatomical structures of the patient based on the plan(s) can be displayed. Clinicians can be enabled to perform numerous reoptimization tasks simultaneously through parallel workflow interfaces and then a radiation therapy device can be controlled to deliver radiation according to a selected radiation treatment plan.

    Magnetic resonance imaging receive coil assembly
    26.
    发明授权
    Magnetic resonance imaging receive coil assembly 有权

    公开(公告)号：US11045108B2

    公开(公告)日：2021-06-29

    申请号：US14555205

    申请日：2014-11-26

    Applicant: ViewRay Technologies, Inc.

    Inventor： Thomas Chmielewski ,  James F. Dempsey

    IPC: A61B5/055 ,  A61N5/10 ,  G01R33/34 ,  G01R33/48 ,  G01R33/3415

    Abstract: A radiofrequency receive coil assembly can include a first conductive loop and a second conductive loop electrically connected at a node. The first and second conductive loops can extend into a treatment beam region of the radio frequency receive coil assembly through which one or more beams of ionizing radiation pass. The first conductive loop and the second conductive loop can overlap each other to provide electromagnetic isolation and/or can use a common conductor combined with a shared capacitor to provide electromagnetic isolation, with the shared capacitor or other electrical components, as well as any conductive loop overlaps, being positioned outside of the treatment beam region. These features can, among other possible advantages, minimize and homogenize attenuation of the beams of ionizing radiation by the radiofrequency receive coil assembly.

    Radiotherapy systems, methods and software
    28.
    发明授权
    Radiotherapy systems, methods and software 有权

    公开(公告)号：US11033758B2

    公开(公告)日：2021-06-15

    申请号：US16204838

    申请日：2018-11-29

    Applicant: ViewRay Technologies, Inc.

    Inventor： James F. Dempsey ,  Iwan Kawrykow

    IPC: A61N5/00 ,  A61N5/10

    Abstract: A photon therapy delivery system can deliver radiation therapy to a patient via a photon beam. The system can utilize a controller configured to facilitate delivery of radiation therapy via a photon beam and also a particle beam. This can include receiving radiation therapy beam information for radiation therapy treatment of a patient utilizing the particle beam and photon beam. Also, patient magnetic resonance imaging (MRI) data can be received during the radiation therapy treatment. Utilizing the patient MRI data, real-time calculations of a location of dose deposition for the particle beam and for the photon beam can be determined taking into account interaction properties of soft tissues through which the particle beam passes.

    Planning and control for magnetic resonance guided radiation therapy
    29.
    发明授权
    Planning and control for magnetic resonance guided radiation therapy 有权

    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.

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