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    SYSTEMS AND METHODS FOR IMPROVED RADIOISOTOPIC DOSE CALCULATION AND DELIVERY
    12.
    发明申请
    SYSTEMS AND METHODS FOR IMPROVED RADIOISOTOPIC DOSE CALCULATION AND DELIVERY 有权
    改进的放射性剂量计算和递送的系统和方法

    公开(公告)号：US20140263990A1

    公开(公告)日：2014-09-18

    申请号：US13801835

    申请日：2013-03-13

    Applicant: VIEWRAY INCORPORATED

    Inventor： Iwan Kawrykow ,  James F. Dempsey

    IPC: A61N5/10

    CPC classification number: A61N5/1031 ,  A61N5/1045 ,  A61N5/1075 ,  A61N2005/1034 ,  A61N2005/1076

    Abstract: Disclosed herein are methods including calibrating a radiotherapy machine to identify an effective radiation source size of a radiation source contained within the radiotherapy machine, the radiation source having a nominal radiation source size, to improve accuracy of a predicted dose profile for one or more radiation beams from the radiation source to further improve accuracy of radiation dose calculation and treatment delivery.

    Abstract translation: 这里公开的方法包括校准放射治疗机器以识别包含在放射治疗机器内的辐射源的有效辐射源尺寸，辐射源具有标称辐射源尺寸，以提高一个或多个辐射束的预测剂量分布的精度 从辐射源进一步提高辐射剂量计算和治疗传递的准确性。

    CORRECTION OF SATURATION BANDING ARTIFACTS IN MAGNETIC RESONANCE IMAGING
    13.
    发明申请
    CORRECTION OF SATURATION BANDING ARTIFACTS IN MAGNETIC RESONANCE IMAGING 有权
    磁共振成像中饱和条纹制品的校正

    公开(公告)号：US20140072199A1

    公开(公告)日：2014-03-13

    申请号：US14082016

    申请日：2013-11-15

    Applicant: ViewRay Incorporated

    Inventor： James F. Dempsey ,  Roger Nana ,  Tony Apicella

    IPC: G06T5/00

    CPC classification number: G06T5/002 ,  G01R33/4833 ,  G01R33/4835 ,  G01R33/565

    Abstract: Systems and methods for correcting saturation banding artifacts in magnetic resonance imaging in which artifact and reference calibration scans are used to create one dimensional or two dimensional correction profiles, which are subsequently applied to actual diagnostic imaging scans to correct the saturation banding artifacts.

    Abstract translation: 用于校正磁共振成像中的饱和带状伪影的系统和方法，其中伪影和参考校准扫描用于创建一维或二维校正曲线，随后将其应用于实际的诊断成像扫描以校正饱和带状伪像。

    Method and apparatus for shielding a linear accelerator and a magnetic resonance imaging device from each other
    15.
    发明授权
    Method and apparatus for shielding a linear accelerator and a magnetic resonance imaging device from each other 有权
    用于屏蔽线性加速器和磁共振成像装置的方法和装置

    公开(公告)号：US09421398B2

    公开(公告)日：2016-08-23

    申请号：US14481619

    申请日：2014-09-09

    Applicant: ViewRay Incorporated

    Inventor： Shmaryu M. Shvartsman ,  Gordon DeMeester ,  James F. Dempsey ,  John Lester Patrick

    IPC: G01R33/421 ,  G01R33/42 ,  A61B5/055 ,  G01R33/28 ,  A61N5/10 ,  G01R33/48 ,  G01R33/38

    CPC classification number: A61N5/1049 ,  A61B5/055 ,  A61B5/0555 ,  A61N5/1039 ,  A61N5/1081 ,  A61N2005/1055 ,  A61N2005/1088 ,  A61N2005/1089 ,  A61N2005/1094 ,  G01R33/28 ,  G01R33/3806 ,  G01R33/42 ,  G01R33/421 ,  G01R33/4808

    Abstract: A radiation therapy system comprises a magnetic resonance imaging (MRI) system combined with an irradiation system, which can include one or more linear accelerators (linacs) that can emit respective radiation beams suitable for radiation therapy. The MRI system includes a split magnet system, comprising first and second main magnets separated by gap. A gantry is positioned in the gap between the main MRI magnets and supports the linac(s) of the irradiation system. The gantry is rotatable independently of the MRI system and can angularly reposition the linac(s). Shielding can also be provided in the form of magnetic and/or RF shielding. Magnetic shielding can be provided for shielding the linac(s) from the magnetic field generated by the MRI magnets. RF shielding can be provided for shielding the MRI system from RF radiation from the linac.

    Abstract translation: 放射治疗系统包括与照射系统组合的磁共振成像（MRI）系统，其可以包括可以发射适合于放射治疗的各个辐射束的一个或多个线性加速器（直线加速器）。 MRI系统包括分裂磁体系统，包括由间隙分开的第一和第二主磁体。 龙门架位于主MRI磁体之间的间隙中，并支撑照射系统的直线加速器。 台架可以独立于MRI系统旋转，并且可以有角度地重新定位直线加速器。 屏蔽也可以以磁性和/或RF屏蔽的形式提供。 可以提供磁屏蔽来屏蔽直线加速器与MRI磁铁产生的磁场。 可以提供射频屏蔽来屏蔽MRI系统免受来自直线加速器的射频辐射。

    PLANNING AND CONTROL FOR MAGNETIC RESONANCE GUIDED RADIATION THERAPY
    16.
    发明申请
    PLANNING AND CONTROL FOR MAGNETIC RESONANCE GUIDED RADIATION THERAPY 审中-公开
    磁共振引导辐射治疗计划与控制

    公开(公告)号：US20160228728A1

    公开(公告)日：2016-08-11

    申请号：US15042046

    申请日：2016-02-11

    Applicant: ViewRay Incorporated

    Inventor： James F. Dempsey ,  Iwan Kawrykow

    IPC: A61N5/10

    CPC classification number: A61N5/1064 ,  A61N5/1037 ,  A61N5/1039 ,  A61N5/1049 ,  A61N5/107 ,  A61N5/1071 ,  A61N2005/1055 ,  A61N2005/1072 ,  G01R33/4808

    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.

    Abstract translation: 磁共振（MR）引导放射治疗（MRgRT）能够根据辐射传播期间捕获的MR成像（MRI）图像所指示的患者运动来控制辐射传播。 MRgRT的方法包括：同时使用一个或多个放射治疗头传送辐射和MRI系统进行MRI; 使用处理器来基于在辐射传送期间捕获的至少一部分MRI图像来确定是否触发一个或多个门; 并且响应于确定基于在辐射传送期间捕获的MRI图像的至少一部分来触发一个或多个门，暂停辐射的传送。

    MAGNETIC RESONANCE IMAGING RECEIVE COIL ASSEMBLY
    17.
    发明申请
    MAGNETIC RESONANCE IMAGING RECEIVE COIL ASSEMBLY 审中-公开
    磁共振成像接收线圈组件

    公开(公告)号：US20160146911A1

    公开(公告)日：2016-05-26

    申请号：US14555205

    申请日：2014-11-26

    Applicant: ViewRay Incorporated

    Inventor： Thomas Chmielewski ,  James F. Dempsey

    IPC: G01R33/36 ,  A61B5/055 ,  A61N5/10

    CPC classification number: A61B5/055 ,  A61N5/1049 ,  A61N2005/1055 ,  G01R33/34007 ,  G01R33/3415 ,  G01R33/4808

    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.

    Abstract translation: 射频接收线圈组件可以包括在节点处电连接的第一导电回路和第二导电回路。 第一和第二导电环路可以延伸到射频接收线圈组件的处理束区域，一个或多个电离辐射束通过该区域通过。 第一导电环路和第二导电环路可以彼此重叠以提供电磁隔离和/或可以使用与共用电容器组合的公共导体，以提供与共享电容器或其它电气部件的电磁隔离以及任何导电环路 重叠，位于处理束区域外部。 除了其它可能的优点之外，这些特征可以通过射频接收线圈组件使电离辐射束的衰减最小化和均匀化。

    Active Resistive Shimming for MRI Devices
    18.
    发明申请
    Active Resistive Shimming for MRI Devices 有权
    MRI器件的有源电阻整齐

    公开(公告)号：US20150185300A1

    公开(公告)日：2015-07-02

    申请号：US14658079

    申请日：2015-03-13

    Applicant: ViewRay Incorporated

    Inventor： Shmaryu M. Shvartsman ,  James F. Dempsey

    IPC: G01R33/36

    CPC classification number: G01R33/3875 ,  G01R33/3642 ,  G01R33/3806 ,  G01R33/385 ,  G01R33/4808 ,  G01R33/481 ,  G01R33/4812 ,  G01R33/4814

    Abstract: Active resistive shim coil assemblies may be used in magnetic resonance imaging (MRI) systems to reduce in-homogeneity of the magnetic field in the imaging volume. Disclosed embodiments may be used with continuous systems, gapped cylindrical systems, or vertically gapped systems. Disclosed embodiments may also be used with an open MRI system and can be used with an instrument placed in the gap of the MRI system. An exemplary embodiment of the active resistive shim coil assembly of the present disclosure includes active resistive shim coils each operable to be energized by separate currents through a plurality of power channels. In some embodiments, the disclosed active resistive shim coil assemblies allow for various degrees of freedom to shim out field in-homogeneity.

    Abstract translation: 有源电阻衬片线圈组件可用于磁共振成像（MRI）系统，以减小成像体积中磁场的均匀性。 公开的实施例可以与连续系统，间隙圆柱形系统或垂直间隙系统一起使用。 公开的实施例也可以与开放式MRI系统一起使用，并且可以与放置在MRI系统的间隙中的仪器一起使用。 本公开的有源电阻衬片线圈组件的示例性实施例包括有源电阻衬垫线圈，其可操作以由通过多个功率通道的分离电流激励。 在一些实施例中，所公开的主动阻抗衬片线圈组件允许不同程度的自由度来均匀地摆放场。

    System and Method for Image Guidance During Medical Procedures
    19.
    发明申请
    System and Method for Image Guidance During Medical Procedures 审中-公开
    医疗过程中图像引导的系统和方法

    公开(公告)号：US20140330108A1

    公开(公告)日：2014-11-06

    申请号：US14332839

    申请日：2014-07-16

    Applicant: ViewRay Incorporated

    Inventor： James F. Dempsey

    IPC: A61B19/00

    CPC classification number: A61B34/25 ,  A61B34/30 ,  A61B90/37 ,  A61B2034/256 ,  A61B2090/374 ,  A61N5/1045 ,  A61N5/1049 ,  A61N5/1067 ,  A61N2005/1055 ,  G01R33/3806 ,  G01R33/4808

    Abstract: A surgical guidance system is disclosed that allows for real-time imaging and patient monitoring during a surgical procedure. The system can include an MRI system for generating real-time images of the patient while surgery is being performed. Prior to surgery, a surgical plan can be created using a planning interface. A control unit receives the real-time image data and the surgical plan, and monitors the image data based on parameters included in the surgical plan. The control-unit monitoring occurs in real-time while the surgical procedure is being performed. The control unit can detect deviations from the surgical plan and/or high-risk patient conditions and instruct an alert unit to issue an alert based on the detected conditions.

    Abstract translation: 公开了一种外科手术引导系统，其允许在外科手术过程中进行实时成像和患者监测。 该系统可以包括用于在执行手术时产生患者的实时图像的MRI系统。 在手术之前，可以使用计划界面创建手术计划。 控制单元接收实时图像数据和手术计划，并且基于包括在手术计划中的参数来监视图像数据。 在执行外科手术过程中，实时监控发生。 控制单元可以检测与手术计划和/或高风险患者状况的偏差，并指示警报单元基于检测到的状况发出警报。

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