Isotropic resolution image reconstruction
    21.
    发明授权
    Isotropic resolution image reconstruction 有权
    各向同性分辨率图像重建

    公开(公告)号:US08488850B2

    公开(公告)日:2013-07-16

    申请号:US12594512

    申请日:2008-03-26

    申请人: Jinghan Ye Xiyun Song

    发明人: Jinghan Ye Xiyun Song

    IPC分类号: G06K9/00

    摘要: A nuclear imaging system (110) includes a radiation detector (112) having a distance dependent spatial resolution. A reconstructor (124) reconstructs projections acquired by the detector to generate image data. The reconstructor (124) applies a distance dependent projection filter (134) so as to reduce angular dependent resolution variations in the image space data.

    摘要翻译: 核成像系统(110)包括具有距离依赖空间分辨率的辐射检测器(112)。 重建器(124)重建由检测器获取的投影以产生图像数据。 重建器(124)应用距离相关的投影滤波器(134),以便减少图像空间数据中的角度相关分辨率变化。

    HEART LOCATION AND VERIFICATION IN EMISSION IMAGES
    22.
    发明申请
    HEART LOCATION AND VERIFICATION IN EMISSION IMAGES 有权
    排放图像中的心位置和验证

    公开(公告)号:US20130142410A1

    公开(公告)日:2013-06-06

    申请号:US13817148

    申请日:2011-07-18

    摘要: An apparatus comprises: an imaging system (10) configured to acquire emission data from a cyclically varying element; a monitoring instrument (20, 22) configured to measure the cyclical varying of the cyclically varying element; and an electronic device (40) configured to locate an image feature corresponding to the cyclically varying element in the acquired emission data based on correlation of time variation of the emission data with the cyclical varying of the cyclically varying element measured by the monitoring instrument. The located image feature may be verified by: thresholding a projection image generated from the emission data to generate a mask image; identifying in the mask image one of (i) a hollow circular feature, (ii) a hollow oval feature, (iii) a circular cavity feature, and (iv) an oval cavity feature; and verifying the located image feature based on whether the identifying operation is successful

    摘要翻译: 一种装置包括:成像系统(10),被配置为从循环变化的元件获取发射数据; 被配置为测量循环变化元件的循环变化的监测仪器(20,22) 以及电子设备(40),其被配置为基于所述发射数据的时间变化与由所述监测仪器测量的所述循环变化元件的周期性变化的相关性来定位所获取的发射数据中对应于所述循环变化元素的图像特征。 定位的图像特征可以通过以下方式来验证:阈值化从发射数据产生的投影图像以生成掩模图像; 在掩模图像中识别(i)中空圆形特征,(ii)中空椭圆形特征,(iii)圆形空腔特征和(iv)椭圆形腔特征中的一个; 以及基于所述识别操作是否成功来验证所述定位图像特征

    HYBRID DUAL-MODALITY IMAGE PROCESSING SYSTEM AND METHOD
    23.
    发明申请
    HYBRID DUAL-MODALITY IMAGE PROCESSING SYSTEM AND METHOD 有权
    混合双模式图像处理系统和方法

    公开(公告)号:US20120002857A1

    公开(公告)日:2012-01-05

    申请号:US13203507

    申请日:2010-02-09

    IPC分类号: G06K9/00

    摘要: Hybrid dual-modality image processing systems and methods are disclosed. For example, an image processing system includes a computer for processing SPECT tomographic projection data and a CT volume image. The computer derives a SPECT transverse volume image from the projection data and registers the SPECT transverse volume image with the CT volume image to obtain an attenuation map and registration information. The computer uses the attenuation map and the registration information to derive a SPECT transverse volume image with attenuation correction. The computer uses the registration information to derive a SPECT transverse volume image without attenuation correction. The SPECT transverse volume images, with and without attenuation correction, are derived at or near the same time, using the same registration information. The registration information is stored in, carried by, or otherwise communicated through the attenuation map for subsequent processing of the SPECT transverse volume images.

    摘要翻译: 公开了混合双模态图像处理系统和方法。 例如,图像处理系统包括用于处理SPECT断层摄影投影数据和CT体积图像的计算机。 计算机从投影数据中导出SPECT横向体积图像,并用CT体积图像注册SPECT横向体积图像,以获得衰减图和注册信息。 计算机使用衰减图和注册信息来导出具有衰减校正的SPECT横向体积图像。 计算机使用注册信息导出没有衰减校正的SPECT横向体积图像。 具有和不具有衰减校正的SPECT横向体积图像使用相同的注册信息在或同时导出。 登记信息被存储在衰减图中,由其传送,或以其它方式传送,以便后续处理SPECT横向体积图像。

    Hybrid dual-modality image processing system and method
    24.
    发明授权
    Hybrid dual-modality image processing system and method 有权
    混合双模态图像处理系统及方法

    公开(公告)号:US08781199B2

    公开(公告)日:2014-07-15

    申请号:US13203507

    申请日:2010-02-09

    IPC分类号: G06K9/00 A61B6/03 A61B6/00

    摘要: Hybrid dual-modality image processing systems and methods are disclosed. For example, an image processing system includes a computer for processing SPECT tomographic projection data and a CT volume image. The computer derives a SPECT transverse volume image from the projection data and registers the SPECT transverse volume image with the CT volume image to obtain an attenuation map and registration information. The computer uses the attenuation map and the registration information to derive a SPECT transverse volume image with attenuation correction. The computer uses the registration information to derive a SPECT transverse volume image without attenuation correction. The SPECT transverse volume images, with and without attenuation correction, are derived at or near the same time, using the same registration information. The registration information is stored in, carried by, or otherwise communicated through the attenuation map for subsequent processing of the SPECT transverse volume images.

    摘要翻译: 公开了混合双模态图像处理系统和方法。 例如,图像处理系统包括用于处理SPECT断层摄影投影数据和CT体积图像的计算机。 计算机从投影数据中导出SPECT横向体积图像,并用CT体积图像注册SPECT横向体积图像,以获得衰减图和注册信息。 计算机使用衰减图和注册信息来导出具有衰减校正的SPECT横向体积图像。 计算机使用注册信息导出没有衰减校正的SPECT横向体积图像。 具有和不具有衰减校正的SPECT横向体积图像使用相同的注册信息在或同时导出。 登记信息被存储在衰减图中,由其传送,或以其它方式传送,以便后续处理SPECT横向体积图像。

    Truncation compensation algorithm for iterative reconstruction
    25.
    发明授权
    Truncation compensation algorithm for iterative reconstruction 有权
    用于迭代重建的截断补偿算法

    公开(公告)号:US08013307B2

    公开(公告)日:2011-09-06

    申请号:US11721722

    申请日:2005-12-05

    IPC分类号: G01T1/161 G01T1/166

    CPC分类号: G01T1/1615

    摘要: An imaging system (10) includes at least one radiation detector (20) disposed adjacent a subject receiving aperture (18) to detect and measure at least one of emission and transmission radiation from a subject, the detector (20) at a plurality of projection angles. A processor (64) determines which radiation data belong to a field of view of the radiation detector (20) at each projection angle. An image processor (70, 72) iteratively reconstructs the radiation detected only in the determined field of view into image representations. Truncated data is compensated by supplying the untruncated data from the projections taken at different angles at which the truncated data is untruncated.

    摘要翻译: 成像系统(10)包括邻近被检体接收孔(18)设置的至少一个辐射检测器(20),用于检测和测量来自受检者的发射和透射辐射中的至少一个,所述检测器(20)处于多个投影 角度。 处理器(64)以每个投影角度确定哪个辐射数据属于辐射检测器(20)的视场。 图像处理器(70,72)将仅在所确定的视野中检测到的辐射重建为图像表示。 截断的数据通过从截断数据未被截断的不同角度提供未突出数据来补偿。

    COMPUTED TOMOGRAPHY IMAGE ACQUISITION
    26.
    发明申请
    COMPUTED TOMOGRAPHY IMAGE ACQUISITION 有权
    计算机图像获取

    公开(公告)号:US20100232565A1

    公开(公告)日:2010-09-16

    申请号:US12377302

    申请日:2007-07-24

    IPC分类号: A61B6/03 A61B6/00

    摘要: A computed tomography acquisition geometry provides an increased field of view (218). A radiation source (202, 702) such as an x-ray source and a radiation detector (204, 704) are displaced from the imaging center (214). In one implementation, the central ray (216) of a radiation beam (212) is parallel to the plane of the detector (204, 704) at the detector midpoint (219, 719), but is displaced from the imaging center.

    摘要翻译: 计算机断层摄影几何提供了增加的视野(218)。 诸如x射线源和辐射检测器(204,704)的辐射源(202,702)从成像中心(214)移位。 在一个实现中,辐射束(212)的中心射线(216)在检测器中点(219,719)处平行于检测器(204,704)的平面,但是从成像中心移位。

    TRUNCATION COMPENSATION ALGORITHM FOR ITERATIVE RECONSTRUCTION
    27.
    发明申请
    TRUNCATION COMPENSATION ALGORITHM FOR ITERATIVE RECONSTRUCTION 有权
    用于迭代重建的交叉补偿算法

    公开(公告)号:US20090310746A1

    公开(公告)日:2009-12-17

    申请号:US11721722

    申请日:2005-12-05

    IPC分类号: G01N23/04 G06K9/00 G01T1/166

    CPC分类号: G01T1/1615

    摘要: An imaging system (10) includes at least one radiation detector (20) disposed adjacent a subject receiving aperture (18) to detect and measure at least one of emission and transmission radiation from a subject, the detector (20) at a plurality of projection angles. A processor (64) determines which radiation data belong to a field of view of the radiation detector (20) at each projection angle. An image processor (70, 72) iteratively reconstructs the radiation detected only in the determined field of view into image representations. Truncated data is compensated by supplying the untruncated data from the projections taken at different angles at which the truncated data is untruncated.

    摘要翻译: 成像系统(10)包括邻近被检体接收孔(18)设置的至少一个辐射检测器(20),用于检测和测量来自受检者的发射和透射辐射中的至少一个,所述检测器(20)处于多个投影 角度。 处理器(64)以每个投影角度确定哪个辐射数据属于辐射检测器(20)的视场。 图像处理器(70,72)将仅在所确定的视野中检测到的辐射重建为图像表示。 截断的数据通过从截断数据未被截断的不同角度提供未突出数据来补偿。

    Computed tomography image acquisition
    28.
    发明授权
    Computed tomography image acquisition 有权
    计算机断层扫描图像采集

    公开(公告)号:US07945012B2

    公开(公告)日:2011-05-17

    申请号:US12377302

    申请日:2007-07-24

    IPC分类号: G01N23/00

    摘要: A computed tomography acquisition geometry provides an increased field of view (218). A radiation source (202, 702) such as an x-ray source and a radiation detector (204, 704) are displaced from the imaging center (214). In one implementation, the central ray (216) of a radiation beam (212) is parallel to the plane of the detector (204, 704) at the detector midpoint (219, 719), but is displaced from the imaging center.

    摘要翻译: 计算机断层摄影几何提供了增加的视野(218)。 诸如x射线源和辐射检测器(204,704)的辐射源(202,702)从成像中心(214)移位。 在一个实现中,辐射束(212)的中心射线(216)在检测器中点(219,719)处平行于检测器(204,704)的平面,但是从成像中心移位。

    Solid state detector packaging technique
    29.
    发明授权
    Solid state detector packaging technique 失效
    固态检测器封装技术

    公开(公告)号:US07649178B2

    公开(公告)日:2010-01-19

    申请号:US11573560

    申请日:2005-08-02

    IPC分类号: G01T1/24

    摘要: A radiation detector package includes a radiation-sensitive solid-state element (10) having a first electrode (12) and a pixelated second electrode (14) disposed on opposite principal surfaces of the solid-state element. An electronics board (20) receives an electrical signal from the solid-state element responsive to radiation incident upon the radiation-sensitive solid-state element. A light-tight shield (40, 40′) shields at least the radiation-sensitive solid-state element from light exposure and compresses an insulating elastomer and metal element connector (30, 32) between the pixilated electrode (14) and contact pads (24) on the electronics board.

    摘要翻译: 辐射检测器封装包括具有设置在固态元件的相对主表面上的第一电极(12)和像素化第二电极(14)的辐射敏感固态元件(10)。 电子板(20)响应于入射到辐射敏感固态元件上的辐射,从固态元件接收电信号。 至少遮蔽了辐射敏感的固态元件免于曝光,并且压缩像素化电极(14)和接触垫(...)之间的绝缘弹性体和金属元件连接器(30,32) 24)在电子板上。

    Solid state detector packaging technique
    30.
    发明申请
    Solid state detector packaging technique 失效
    固态检测器封装技术

    公开(公告)号:US20070158574A1

    公开(公告)日:2007-07-12

    申请号:US11573560

    申请日:2005-08-02

    IPC分类号: G01T1/24

    摘要: A radiation detector package includes a radiation-sensitive solid-state element (10) having a first electrode (12) and a pixelated second electrode (14) disposed on opposite principal surfaces of the solid-state element. An electronics board (20) receives an electrical signal from the solid-state element responsive to radiation incident upon the radiation-sensitive solid-state element. A light-tight shield (40, 40′) shields at least the radiation-sensitive solid-state element from light exposure and compresses an insulating elastomer and metal element connector (30, 32) between the pixilated electrode (14) and contact pads (24) on the electronics board.

    摘要翻译: 辐射检测器封装包括具有设置在固态元件的相对主表面上的第一电极(12)和像素化第二电极(14)的辐射敏感固态元件(10)。 电子板(20)响应于入射到辐射敏感固态元件上的辐射,从固态元件接收电信号。 至少遮蔽了辐射敏感的固态元件免于曝光,并且将像素化电极(14)和接触垫(14,32)之间的绝缘弹性体和金属元件连接器(30,32)压缩, 24)在电子板上。