METHOD FOR CALIBRATING NUCLEAR MEDICINE DIAGNOSIS APPARATUS
    72.
    发明申请
    METHOD FOR CALIBRATING NUCLEAR MEDICINE DIAGNOSIS APPARATUS 审中-公开
    用于校准核医学诊断装置的方法

    公开(公告)号:US20090084947A1

    公开(公告)日:2009-04-02

    申请号:US12039413

    申请日:2008-02-28

    IPC分类号: G12B13/00

    CPC分类号: G01T1/1648

    摘要: A nuclear medicine diagnosis apparatus, which rotates a rod-shaped radiation source or a point radiation source while changing the radius thereof and carries out a calibration work, is provided to resolve the following problems. If detector calibration is carried out using a cylindrical phantom whose interior is filled with a 18F solution, for example, there is a risk that a γ-ray is scattered by the aqueous solution itself inside the cylindrical phantom. Although there is a method for correcting the scattered radiation, the method has a disadvantage that the correction results in poor calibration. Moreover, if a rod-shaped radiation source is rotated inside a tunnel, there is an extremely low risk of causing the above-described scattering because it is rod-shaped. However, this rod-shaped radiation source only rotates on an orbit of a certain radius, resulting in a ring-shaped radiation source having a hollow portion thereinside.

    摘要翻译: 提供了一种在改变其半径并执行校准工作的同时旋转棒状辐射源或点辐射源的核医学诊断装置,以解决以下问题。 如果使用其内部填充有18F溶液的圆柱形幻影进行检测器校准,例如,存在伽马射线在水平溶液本身在圆柱体模体内散射的风险。 虽然存在用于校正散射辐射的方法,但是该方法具有校正导致校准差的缺点。 此外,如果杆状辐射源在隧道内旋转,则由于它是棒状,所以导致上述散射的风险极低。 然而,该棒状辐射源仅在某个半径的轨道上旋转,导致环形辐射源在其内部具有中空部分。

    COLLIMATOR, RADIOLOGICAL IMAGING APPARATUS AND NUCLEAR MEDICINE DIAGNOSIS APPARATUS
    76.
    发明申请
    COLLIMATOR, RADIOLOGICAL IMAGING APPARATUS AND NUCLEAR MEDICINE DIAGNOSIS APPARATUS 失效
    放射成像装置和核医学诊断装置

    公开(公告)号:US20110233412A1

    公开(公告)日:2011-09-29

    申请号:US12019269

    申请日:2008-01-24

    IPC分类号: G21K1/02 G01T1/00

    CPC分类号: G21K1/025 G01T1/1648

    摘要: A collimator, a radiological imaging apparatus and a nuclear medicine diagnosis apparatus which are able to improve the sensitivity are provided. The radiological imaging apparatus has a collimator 11 disposed to oppose a radiological detection device 12 and having through-holes 11a for passing to the radiological detection device 12 gamma rays in a specified direction out of those radiated from an object to be examined. The collimator 11 is produced by mutually coupling a plurality of metal tubular members 11A each having the through-hole 11a with the help of a bonding agent S in alignment with a plurality of detectors 12a constituting the radiological detection device 12.

    摘要翻译: 提供了能够提高灵敏度的准直仪,放射学成像装置和核医学诊断装置。 放射线成像装置具有与放射线检测装置12相对设置的准直仪11,具有通过通孔11a使得放射线检测装置12沿从规定方向射出的伽马射线从被检体的辐射状态射出。 准直仪11是借助于与构成放射线检测装置12的多个检测器12a对准的接合剂S,使具有贯通孔11a的多个金属管状构件11A相互连接而制造的。

    NUCLEAR MEDICAL DIAGNOSIS APPARATUS
    77.
    发明申请
    NUCLEAR MEDICAL DIAGNOSIS APPARATUS 有权
    核医学诊断设备

    公开(公告)号:US20080310580A1

    公开(公告)日:2008-12-18

    申请号:US12039270

    申请日:2008-02-28

    IPC分类号: G01N23/00

    CPC分类号: G01T1/2985 A61B6/037

    摘要: A nuclear medial diagnosis apparatus is used for performing diagnosis by administering a medicine marked with a radioactive isotope into an examinee and by using an image obtained by detecting gamma rays emitted from a particular organ or tumor where the medicine is accumulated. An image (an image created by an image creation unit) is created by a signal (a signal as an output from a radiation detector) corresponding to the energy of the gamma ray detected by a radiation detector. The image includes a contamination component attributed to gamma scattering in the radiation detector. An image correction operation unit performs a convolution operation to obtain a contamination image. The contamination image is subtracted by a corrected image creation unit. Thus, it is possible to prevent image degradation by the gamma ray scattering in the radiation detector.

    摘要翻译: 核内诊断装置用于通过将标有放射性同位素的药物给予受检者并使用通过检测从药物积聚的特定器官或肿瘤发射的γ射线获得的图像进行诊断。 图像(由图像创建单元创建的图像)由对应于由辐射检测器检测的伽马射线的能量的信号(作为来自辐射检测器的输出的信号)产生。 图像包括归因于辐射检测器中的伽马散射的污染成分。 图像校正操作单元执行卷积操作以获得污染图像。 污染图像由校正图像创建单元减去。 因此,可以防止辐射检测器中的伽马射线散射引起的图像劣化。

    Collimator, radiological imaging apparatus and nuclear medicine diagnosis apparatus
    80.
    发明授权
    Collimator, radiological imaging apparatus and nuclear medicine diagnosis apparatus 失效
    准直仪,放射成​​像仪器和核医学诊断仪器

    公开(公告)号:US08330113B2

    公开(公告)日:2012-12-11

    申请号:US12019269

    申请日:2008-01-24

    IPC分类号: G01T1/00

    CPC分类号: G21K1/025 G01T1/1648

    摘要: A collimator, a radiological imaging apparatus and a nuclear medicine diagnosis apparatus which are able to improve the sensitivity are provided. The radiological imaging apparatus has a collimator 11 disposed to oppose a radiological detection device 12 and having through-holes 11a for passing to the radiological detection device 12 gamma rays in a specified direction out of those radiated from an object to be examined. The collimator 11 is produced by mutually coupling a plurality of metal tubular members 11A each having the through-hole 11a with the help of a bonding agent S in alignment with a plurality of detectors 12a constituting the radiological detection device 12.

    摘要翻译: 提供了能够提高灵敏度的准直仪,放射学成像装置和核医学诊断装置。 放射线成像装置具有与放射线检测装置12相对设置的准直仪11,具有通过通孔11a使得放射线检测装置12沿从规定方向射出的伽马射线从被检体的辐射状态射出。 准直仪11是借助于与构成放射线检测装置12的多个检测器12a对准的接合剂S,使具有贯通孔11a的多个金属管状构件11A相互连接而制造的。