MAGNETIC ASSEMBLY AND METHOD FOR DEFINING A MAGNETIC FIELD FOR AN IMAGING VOLUME
    4.
    发明申请
    MAGNETIC ASSEMBLY AND METHOD FOR DEFINING A MAGNETIC FIELD FOR AN IMAGING VOLUME 审中-公开
    磁性装配和用于定义成像体积的磁场的方法

    公开(公告)号:US20110175694A1

    公开(公告)日:2011-07-21

    申请号:US13000877

    申请日:2009-06-25

    IPC分类号: H01F7/02 G06G7/62

    摘要: Disclosed herein is a magnet assembly that includes at least two magnets arranged in a fixed spaced relationship with one another thereby to define a space between the magnets that encompasses an imaging volume. Each of the magnets produces a variety of magnetic field strengths across inward-facing surfaces thereof that, in combination, produce an acceptably homogeneous magnetic field in the imaging volume. Also disclosed is a method of defining a magnetic field for an imaging volume. The method comprises generating an initial model of a magnet assembly; estimating a magnetic field for the imaging volume based on the model; calculating deviation between the estimated magnetic field and a target magnetic field for the imaging volume; and updating the model to reduce the deviation by modifying the magnet assembly to produce a variety of magnetic field strengths that, in combination, produce substantially the target magnetic field in the imaging volume.

    摘要翻译: 本文公开了一种磁体组件,其包括彼此以固定的间隔关系布置的至少两个磁体,从而限定包含成像体积的磁体之间的空间。 每个磁体在其向内的表面上产生各种磁场强度,其组合在成像体积中产生可接受均匀的磁场。 还公开了一种为成像体积定义磁场的方法。 该方法包括产生磁体组件的初始模型; 基于该模型估计成像体积的磁场; 计算用于成像体积的估计磁场和目标磁场之间的偏差; 并且通过修改磁体组件来产生各种磁场强度来更新模型以减小偏差,所述磁场强度组合地基本上产生成像体积中的目标磁场。

    INTEGRATED EXTERNAL BEAM RADIOTHERAPY AND MRI SYSTEM
    5.
    发明申请
    INTEGRATED EXTERNAL BEAM RADIOTHERAPY AND MRI SYSTEM 有权
    综合外部束放射治疗和MRI系统

    公开(公告)号:US20090149735A1

    公开(公告)日:2009-06-11

    申请号:US12090586

    申请日:2006-10-10

    IPC分类号: A61B5/055 A61N5/10 A61N5/00

    摘要: A radiation therapy system comprises a radiation source generating a beam of radiation and a magnetic resonance imaging apparatus. An interface acts between the radiation source and the MRI apparatus that permits irradiation to be performed simultaneously with imaging. The MRI apparatus and radiation source are coupled such that the system can be used in a rotation mode whereby the radiation source can irradiate a subject from basically any angle without reducing MRI image quality.

    摘要翻译: 辐射治疗系统包括产生辐射束的辐射源和磁共振成像装置。 接口作用在辐射源和MRI装置之间,允许与成像同时进行照射。 MRI装置和辐射源被耦合,使得系统可以以旋转模式使用,由此辐射源可以从基本上任何角度照射被摄体而不降低MRI图像质量。

    Integrated external beam radiotherapy and MRI system
    6.
    发明授权
    Integrated external beam radiotherapy and MRI system 有权
    综合外束放射治疗和MRI系统

    公开(公告)号:US09468777B2

    公开(公告)日:2016-10-18

    申请号:US12090586

    申请日:2006-10-10

    IPC分类号: A61B5/05 A61N5/10 A61B5/055

    摘要: A radiation therapy system comprises a radiation source generating a beam of radiation and a magnetic resonance imaging apparatus. An interface acts between the radiation source and the MRI apparatus that permits irradiation to be performed simultaneously with imaging. The MRI apparatus and radiation source are coupled such that the system can be used in a rotation mode whereby the radiation source can irradiate a subject from basically any angle without reducing MRI image quality.

    摘要翻译: 辐射治疗系统包括产生辐射束的辐射源和磁共振成像装置。 接口作用在辐射源和MRI装置之间,允许与成像同时进行照射。 MRI装置和辐射源被耦合,使得系统可以以旋转模式使用,由此辐射源可以从基本上任何角度照射被摄体而不降低MRI图像质量。

    IMAGE GUIDED RADIATION THERAPY SYSTEM AND SHIELDED RADIO FREQUENCY DETECTOR COIL FOR USE THEREIN
    8.
    发明申请
    IMAGE GUIDED RADIATION THERAPY SYSTEM AND SHIELDED RADIO FREQUENCY DETECTOR COIL FOR USE THEREIN 审中-公开
    图像引导辐射治疗系统和屏蔽无线电频率检测器线圈

    公开(公告)号:US20120150016A1

    公开(公告)日:2012-06-14

    申请号:US13253589

    申请日:2011-10-05

    IPC分类号: A61B5/055 A61N5/00

    摘要: A radiation therapy system includes a radiation source capable of generating a beam of radiation; a magnetic resonance imaging (MRI) apparatus comprising at least one radiofrequency detector coil; and an electrically grounded dielectric material between the radiation source and the radiofrequency detector coil for shielding the at least one radiofrequency detector coil from the beam of radiation. Also disclosed is a radiofrequency detector coil for a magnetic resonance imaging (MRI) apparatus sheathed at least in part by a dielectric material that is adapted to be electrically grounded.

    摘要翻译: 辐射治疗系统包括能够产生辐射束的辐射源; 包括至少一个射频检测器线圈的磁共振成像(MRI)装置; 以及在辐射源和射频检测器线圈之间的电接地电介质材料,用于屏蔽来自辐射束的至少一个射频检测器线圈。 还公开了一种用于磁共振成像(MRI)装置的射频检测器线圈,所述磁共振成像(MRI)装置至少部分地由适于电接地的电介质材料包覆。