公开(公告)号：US20180275238A1

公开(公告)日：2018-09-27

申请号：US15933288

申请日：2018-03-22

Applicant: ViewRay Technologies, Inc.

Inventor： Thomas Chmielewski ,  Shmaryu M. Shvartsman

IPC: G01R33/565 ,  G01R33/383 ,  G01R33/381

CPC classification number: G01R33/56563 ,  G01R33/381 ,  G01R33/383 ,  G01R33/565

Abstract: Apparatuses, methods, and computer program products for reducing an appearance of an artifact in an image generated by a magnetic resonance imaging (MRI) system are disclosed. The apparatus includes a magnetic field generating device configured to create an inhomogeneity in the magnetic field of an MRI system and prevent at least one out-of-field excitation during imaging.

公开(公告)号：US20180161602A1

公开(公告)日：2018-06-14

申请号：US15840941

申请日：2017-12-13

Applicant: ViewRay Technologies, Inc.

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

IPC: A61N5/10

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：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：US20210298630A1

公开(公告)日：2021-09-30

申请号：US17346062

申请日：2021-06-11

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.

公开(公告)号：US20210220676A1

公开(公告)日：2021-07-22

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 ,  A61B6/04 ,  G21K1/04 ,  A61B6/03 ,  A61B6/00

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：US20170052236A1

公开(公告)日：2017-02-23

申请号：US15224264

申请日：2016-07-29

Applicant: ViewRay Technologies, Inc.

Inventor： James F. Dempsey ,  Thomas Chmielewski

IPC: G01R33/34 ,  G01R33/48

Abstract: A radio frequency coil is disclosed that is suitable for use with a magnetic resonance imaging apparatus. The radio frequency coil comprises first and second conductive loops connected electrically to each other by a plurality of conductive rungs. The conductive rungs each include a section that is relatively thin that will result in less attenuation to a radiation beam than other thicker sections of the rungs. Insulating regions are also disposed in areas of the radio frequency coil that are bound by adjacent rungs and the conductive loops. Portions of the insulating regions can be configured to provide a substantially similar amount of attenuation to the radiation beam as the relatively thin sections of the conductive rungs.

Abstract translation: 公开了适用于磁共振成像装置的射频线圈。 射频线圈包括通过多个导电梯级彼此电连接的第一和第二导电回路。 导电梯级各自包括相对较薄的部分，这将导致对辐射束的衰减比梯级的其它较厚部分更小的衰减。 绝缘区域也设置在由相邻梯级和导电环路束缚的射频线圈的区域中。 绝缘区域的一部分可以被配置为提供与导电梯级的相对薄的部分相当的辐射束的衰减量。