Gamma camera and CT system
    11.
    发明申请
    Gamma camera and CT system 失效
    伽玛相机和CT系统

    公开(公告)号:US20050006586A1

    公开(公告)日:2005-01-13

    申请号:US10900936

    申请日:2004-07-28

    Abstract: Apparatus for producing attenuation corrected nuclear medicine images of patients, comprising: at least one gamma camera head that acquires nuclear image data suitable to produce a nuclear tomographic image at a first controllable rotation rate about an axis; at least one X-ray CT imager that acquires X-ray data suitable to produce an attenuation image for correction of the nuclear tomographic image at a second controllable rotation rate about the axis; and a controller that controls the data acquisition and first and second rotation rates to selectively provide at least one of the following modes of operation: (i) a movement gated NM imaging mode in which the second rotation rate is substantially higher than the first rotation rate and the data from each view of the X-ray acquisition is associated with one of a plurality of respiration gated time periods; (ii) a cardiac gated NM imaging mode in which the second rotation rate is substantially higher than the first rotation rate and the data from each view of the X-ray acquisition for different rotations is averaged, wherein the X-ray data is not correlated with the cardiac cycle; and (iii) a cardiac gated NM imaging mode in which the second rotation rate is higher than the first rotation rate and the X-ray data is binned in accordance with a same binning as the NM data.

    Abstract translation: 用于产生患者的衰减校正核医学图像的装置,包括:至少一个伽马相机头,其获取适于以围绕轴线的第一可控旋转速率产生核断层图像的核图像数据; 至少一个X射线CT成像器,其获取适于产生用于以围绕所述轴线的第二可控旋转速率校正所述核断层图像的衰减图像的X射线数据; 以及控制器,其控制数据采集和第一和第二旋转速率以选择性地提供以下操作模式中的至少一种:(i)运动选通NM成像模式,其中第二旋转速率基本上高于第一旋转速率 并且来自X射线获取的每个视图的数据与多个呼吸选通时间段中的一个相关联; (ii)心脏门控NM成像模式,其中第二旋转速率基本上高于第一旋转速率,并且来自用于不同旋转的X射线获取的每个视图的数据被平均,其中X射线数据不相关 与心动周期; 和(iii)心脏门控NM成像模式,其中第二旋转速率高于第一旋转速率,并且X射线数据根据与NM数据相同的组合进行分样。

    SPECT for breast cancer detection
    13.
    发明授权
    SPECT for breast cancer detection 有权
    SPECT用于乳腺癌检测

    公开(公告)号:US06794653B2

    公开(公告)日:2004-09-21

    申请号:US10426543

    申请日:2003-04-30

    CPC classification number: G01T1/1644 A61B6/037

    Abstract: A nuclear imaging system for imaging of the breast including at least one gamma camera, having a radiation detecting surface, which detects gamma radiation and provides data signals responsive to radiation from the breast and a collimator, positioned over the reception surface. The system includes a gantry on which the radiation detector is mounted and which provides rotational movement of the radiation detection surface around the axis of the breast and a computer which receives and analyzes the data signals and constructs an image of radiation sources therefrom. The radiation detection surface of the at least one gamma camera is tilted with respect to the axis during rotation of the at least one gamma camera about the axis, such that it is partially facing the chest of a study subject. Alternatively, the collimator has septa its center which accept radiation from a direction perpendicular to the radiation detection surface and septa near an edge of the collimator which accept radiation from an outward facing acute angle to the perpendicular direction.

    Abstract translation: 一种用于乳房成像的核成像系统,包括至少一个伽马照相机,具有辐射检测表面,其检测伽马辐射,并响应于来自乳房的辐射和准直器提供位于接收表面上的数据信号。 该系统包括其上安装有辐射检测器的台架,其提供辐射检测表面围绕乳房的轴线的旋转运动,以及接收和分析数据信号并构建其辐射源的图像的计算机。 所述至少一个伽马照相机的辐射检测表面在所述至少一个伽马照相机绕轴线旋转期间相对于所述轴线倾斜,使得其部分地面向研究对象的胸部。 或者,准直器具有其中心的隔膜,其接收来自垂直于放射线检测表面的方向的辐射和靠近准直器的边缘的隔膜,其接收从垂直方向向外的锐角的辐射。

    Gamma camera and CT system
    14.
    发明授权
    Gamma camera and CT system 有权
    伽玛相机和CT系统

    公开(公告)号:US07087903B2

    公开(公告)日:2006-08-08

    申请号:US11044772

    申请日:2005-01-26

    Abstract: A nuclear medicine camera having an X-ray imaging capability, comprising: a gantry having a stationary portion and at least one rotating portion; at least one gamma camera mounted on a said at least one rotating portion and capable of being rotated together at a common first rotation rate about an axis, said at least one gamma camera being capable of acquiring nuclear imaging data for reconstructing a tomographic nuclear image; and an X-ray CT imager having an X-ray source mounted on said at least one rotating portion and being capable of acquiring X-ray imaging data for reconstructing an X-ray image; said X-ray CT imager being mounted closer to said stationary portion than said at least one gamma camera.

    Abstract translation: 一种具有X射线成像能力的核医学相机,包括:具有静止部分和至少一个旋转部分的台架; 至少一个伽马照相机安装在所述至少一个旋转部分上并且能够以围绕轴线的公共第一旋转速率一起旋转,所述至少一个伽马照相机能够获取用于重建断层摄影核图像的核成像数据; 以及X射线CT成像器,其具有安装在所述至少一个旋转部分上的X射线源,并且能够获取用于重建X射线图像的X射线成像数据; 所述X射线CT成像器比所述至少一个伽马照相机更靠近所述固定部分。

    SPECT for breast cancer detection
    16.
    发明授权
    SPECT for breast cancer detection 失效
    SPECT用于乳腺癌检测

    公开(公告)号:US06696686B1

    公开(公告)日:2004-02-24

    申请号:US09587580

    申请日:2000-06-05

    CPC classification number: G01T1/1644 A61B6/037

    Abstract: A system, for the nuclear imaging of the breast, comprising: at least one gamma camera, of a size appropriate for the scanning of a breast, having a radiation detecting surface, which detects gamma radiation and provides data signals responsive to radiation from the breast; a collimator, positioned over the reception surface; a gantry on which the radiation detector is mounted and which provides rotational movement of the radiation detection surface around the axis of the breast; and a computer which receives and analyzes the data signals and constructs an image of radiation sources therefrom.

    Abstract translation: 一种用于乳房核成像的系统,包括:至少一个具有适于扫描乳房的尺寸的伽马相机,具有辐射检测表面,其检测伽马辐射并提供响应于来自乳房的辐射的数据信号 位于接收表面上的准直器;安装有辐射探测器的台架,其提供辐射检测表面围绕乳房的轴线的旋转运动; 以及接收和分析数据信号并构建其辐射源的图像的计算机。

    Double decker detector for spectral CT
    18.
    发明授权
    Double decker detector for spectral CT 有权
    用于光谱CT的双层检测器

    公开(公告)号:US07968853B2

    公开(公告)日:2011-06-28

    申请号:US11912673

    申请日:2006-04-10

    Abstract: A radiation detector (24) includes a two-dimensional array of upper scintillators (30τ) which is disposed facing an x-ray source (14) to convert lower energy radiation into visible light and transmit higher energy radiation. A two-dimensional array of lower scintillators (30B) is disposed adjacent the upper scintillators (30τ) distally from the x-ray source (14) to convert the transmitted higher energy radiation into visible light. Respective active areas (94, 96) of each upper and lower photodetector arrays (38τ, 38B) are optically coupled to the respective upper and lower scintillators (30τ, 30B) at an inner side (60) of the scintillators (30τ, 30B) which inner side (60) is generally perpendicular to an axial direction (Z). Interference filters (110, 112) may be deposited on the active areas (94, 96) of the associated upper and lower photodetectors (38τ, 38B) to restrict radiation wavelengths received by the upper and lower photodetectors (38τ, 38B) to wavelengths emitted by the respective upper and lower scintillators (30τ, 30B). The upper scintillators (30τ) may include at least one of ZnSe(Te) and YAG(Ce).

    Abstract translation: 放射线检测器(24)包括面向x射线源(14)设置的上部闪烁体(30τ)的二维阵列,以将较低能量的辐射转换成可见光并传输更高的能量辐射。 将下部闪烁体(30B)的二维阵列设置成与x射线源(14)远离的上部闪烁体(30τ)相邻,以将透射的较高能量辐射转换成可见光。 每个上和下光电检测器阵列(38τ,38B)的相关有源区域(94,96)在闪烁体(30τ,30B)的内侧(60)处光学耦合到相应的上和下闪烁体(30τ,30B) 该内侧(60)大致垂直于轴向(Z)。 干涉滤光器(110,112)可以沉积在相关联的上和下光电检测器(38τ,38B)的有源区域(94,96)上,以将由上和下光电检测器(38τ,38B)接收的辐射波长限制为发射的波长 通过相应的上和下闪烁体(30τ,30B)。 上部闪烁体(30τ)可以包括ZnSe(Te)和YAG(Ce)中的至少一种。

    Double Decker Detector For Spectral Ct
    19.
    发明申请
    Double Decker Detector For Spectral Ct 有权
    用于光谱的双层探测器

    公开(公告)号:US20080210877A1

    公开(公告)日:2008-09-04

    申请号:US11912673

    申请日:2006-04-10

    Abstract: A radiation detector (24) includes a two-dimensional array of upper scintillators (30τ) which is disposed facing an x-ray source (14) to convert lower energy radiation into visible light and transmit higher energy radiation. A two-dimensional array of lower scintillators (30B) is disposed adjacent the upper scintillators (30τ) distally from the x-ray source (14) to convert the transmitted higher energy radiation into visible light. Respective active areas (94, 96) of each upper and lower photodetector arrays (38τ, 38B) are optically coupled to the respective upper and lower scintillators (30τ, 30B) at an inner side (60) of the scintillators (30τ, 30B) which inner side (60) is generally perpendicular to an axial direction (Z). Interference filters (110, 112) may be deposited on the active areas (94, 96) of the associated upper and lower photodetectors (38τ, 38B) to restrict radiation wavelengths received by the upper and lower photodetectors (38τ, 38B) to wavelengths emitted by the respective upper and lower scintillators (30τ, 30B). The upper scintillators (30τ) may include at least one of ZnSe(Te) and YAG(Ce).

    Abstract translation: 放射线检测器(24)包括面向x射线源(14)设置的上部闪烁体(30τ)的二维阵列,以将较低能量的辐射转换成可见光并传输更高的能量辐射。 将下部闪烁体(30B)的二维阵列设置成与x射线源(14)远端的上部闪烁体(30τ)相邻,以将传输的较高能量辐射转换成可见光。 每个上和下光电检测器阵列(38tau,38B)的相关活性区域(94,96)在闪烁体(30tau,38B)的内侧(60)处光学耦合到相应的上和下闪烁体(30tau,30B) 30B),其内侧(60)大致垂直于轴向方向(Z)。 可以将干涉滤光器(110,112)沉积在相关联的上和下光电探测器(38tau,38B)的有源区(94,96)上,以将由上和下光电检测器(38tau,38B)接收的辐射波长限制在 由相应的上和下闪烁体(30tau,30B)发射的波长。 上部闪烁体(30τ)可以包括ZnSe(Te)和YAG(Ce)中的至少一种。

    Imaging measurement system with a printed photodetector array
    20.
    发明授权
    Imaging measurement system with a printed photodetector array 有权
    具有印刷光电检测器阵列的成像测量系统

    公开(公告)号:US09322939B2

    公开(公告)日:2016-04-26

    申请号:US13390529

    申请日:2010-08-05

    CPC classification number: G01T1/2985 G01T1/2018 G01T1/242 G01T1/249

    Abstract: Low cost large area photodetector arrays are provided. In a first embodiment, the photodetectors comprise an inorganic photoelectric conversion material formed in a single thick layer of material. In a second embodiment, the photodetectors comprise a lamination of several thin layers of an inorganic photoelectric conversion material, the combined thickness of which is large enough to absorb incoming x-rays with a high detector quantum efficiency. In a third embodiment, the photodetectors comprise a lamination of several layers of inorganic or organic photoelectric conversion material, wherein each layer has a composite scintillator coating.

    Abstract translation: 提供了低成本的大面积光电检测器阵列。 在第一实施例中,光电检测器包括形成在单个厚层材料中的无机光电转换材料。 在第二实施例中,光电检测器包括几层薄层的无机光电转换材料,其组合的厚度足够大以便以高检测器量子效率吸收入射的X射线。 在第三实施例中,光电检测器包括几层无机或有机光电转换材料的叠层,其中每层具有复合闪烁体涂层。

Patent Agency Ranking