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    • 3. 发明公开
    • SPECT gamma camera with a fixed detector radius of orbit
    • SPECT Kamera mit auf einem Orbit mit festem半径umlaufenden Detektor
    • EP1662273A2
    • 2006-05-31
    • EP05025490.3
    • 2005-11-23
    • Ultra Spect Ltd.
    • The designation of the inventor has not yet been filed
    • G01T1/164
    • G01T1/166A61B6/037G01T1/1611G01T1/2985
    • The current invention presents designs of SPECT gamma cameras without the in-out mechanical motion of the detectors. The elimination of this motion is achieved by the implementation of iterative algorithms, such as Resolution Recovery and/or Wide Beam Reconstruction, which compensate for the Line Spread Function effect due to the collimator characteristics. The use of these methods enables construction of SPECT gamma cameras with a range of novel designs, having their gamma detector (or detectors) orbiting the patient in a predetermined orbit of fixed radius. For example, the radius might be chosen as such that the majority of all patients can be scanned by the system. This shows the advantages of the invention for gamma cameras with any numbers of detectors.
    • 本发明提供了SPECT伽马照相机的设计,而没有检测器的进出机械运动。 通过实施诸如分辨率恢复和/或宽光束重建的迭代算法来实现该动作的消除,其补偿由于准直器特性引起的线扩展函数效应。 使用这些方法可以构建具有一系列新颖设计的SPECT伽马相机,其伽马检测器(或检测器)以预定的固定半径的轨道绕过患者。 例如,可以选择半径,使得所有患者的大多数可以被系统扫描。 这显示了具有任何数量的检测器的γ照相机的本发明的优点。