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：US09889318B2

公开(公告)日：2018-02-13

申请号：US14064053

申请日：2013-10-25

Applicant: ViewRay Technologies, Inc.

Inventor： James F. Dempsey

IPC: A61B5/05 ,  A61N5/10 ,  A61B5/055 ,  A61B5/00 ,  G01R33/50

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：US09599687B2

公开(公告)日：2017-03-21

申请号：US14658079

申请日：2015-03-13

Applicant: ViewRay Incorporated

Inventor： Shmaryu M. Shvartsman ,  James F. Dempsey

IPC: G01V3/00 ,  G01R33/36 ,  G01R33/3875 ,  G01R33/48 ,  G01R33/38

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.

公开(公告)号：US09472000B2

公开(公告)日：2016-10-18

申请号：US12817846

申请日：2010-06-17

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

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

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

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.

Abstract translation: 用于图像的层析重建的系统和方法包括用于从k空间数据产生图像的系统和方法。 使用已知的k空间数据采集系统和方法获取成像对象的k空间数据集。 对k空间数据集的一部分进行采样，以收集k空间数据的一部分。 然后根据凸优化模型从k空间数据集的收集部分重建图像。

公开(公告)号：US09423477B2

公开(公告)日：2016-08-23

申请号：US14452416

申请日：2014-08-05

Applicant: ViewRay Incorporated

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

IPC: G01R33/38 ,  G01R33/385 ,  A61B5/055 ,  G01R33/48 ,  A61N5/10

CPC classification number: G01R33/3806 ,  A61B5/055 ,  A61N2005/1055 ,  G01R33/3802 ,  G01R33/3856 ,  G01R33/4808

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。