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    • 67. 发明公开
    • Efficient single photon emission imaging
    • Effiziente Einzelphotonemissionsbildgebung
    • EP1552789A2
    • 2005-07-13
    • EP05000202.1
    • 2005-01-07
    • Ultra Spect Ltd.
    • Oaknin, Jacob H.Shwartz, Shoulamit C.Ohana, Israel
    • A61B6/00G01T1/164
    • G06T11/006A61B6/037A61B6/4057A61B6/503A61B6/541A61B6/583G01T1/1644G06T2211/424
    • The invention relates to efficient single photon emission imaging. A method of shortening acquisition time for obtaining a reconstructed image of a portion (4) of a body (5) of a human patient who was administered with dosage of radiopharmaceutical substance radiating gamma rays, using SPECT (single photon emission computerized tomography), for determination of functional information thereon, comprises the steps of:

      (a) acquiring photons (3) emitted from said portion (4) of the body (5), by means of a detector (2) capable of converting the photons (3) into electric signals, the electric signals relating to minimal information required for obtaining a meaningful image;
      (b) processing said electric signals by a position logic circuitry (7) and thereby deriving therefrom data indicative of positions on said photon detector crystal (6), where the photons have impinged the detector (2); and
      reconstructing an image of a spatial distribution of the pharmaceutical substance within the portion of the body (5) by iteratively processing said data.
    • 本发明涉及有效的单光子发射成像。 一种缩短采集时间的方法,用于获得使用SPECT(单光子发射计算机断层摄影)照射伽马射线的放射性药物物质的剂量的人类患者的身体(5)的部分(4)的重建图像, 确定其上的功能信息包括以下步骤:(a)通过能够将光子(3)转换成光子(3)的检测器(2)获取从所述主体(5)的所述部分(4)发射的光子(3) 电信号,与获得有意义的图像所需的最小信息有关的电信号; (b)通过位置逻辑电路(7)处理所述电信号,从而由其导出指示所述光子检测器晶体(6)上的位置的数据,其中光子已经撞击了检测器(2); 以及通过迭代地处理所述数据来重建所述体内(5)部分内的所述药物物质的空间分布的图像。