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    • 3. 发明授权
    • Spectral CT
    • 光谱CT
    • US08442184B2
    • 2013-05-14
    • US12996985
    • 2009-06-01
    • Peter ForthmannUdo Van StevendaalEwald RoesslMichael GrassRoland ProksaJens-Peter Schlomka
    • Peter ForthmannUdo Van StevendaalEwald RoesslMichael GrassRoland ProksaJens-Peter Schlomka
    • A61B6/00
    • A61B6/405A61B6/032A61B6/4014A61B6/4035A61B6/4042A61B6/4241A61B6/482
    • An imaging system includes a radiation source (106, T1, T2, T3) that rotates about an examination region and emits radiation that traverses the examination region. The radiation source (106, T1, T2, T3) emits radiation having an energy spectrum that is selectively alternately switched between at least two different energy spectra during an imaging procedure. The system further includes an energy-resolving detector array (116, D1, D2, D3) that detects radiation traversing the examination region. The energy-resolving detector array (116, D1, D2, D3) resolves the detected radiation over at least two different energy ranges and produces energy-resolved output signals as a function of both emission energy spectrum and energy range. The system further includes a reconstructor (126) that performs a spectral reconstruction of the energy-resolved output signals. In another embodiment, the detector array (116) includes a photon-counting detector array (116).
    • 成像系统包括围绕检查区域旋转并且发射穿过检查区域的辐射的辐射源(106,T1,T2,T3)。 辐射源(106,T1,T2,T3)发射具有在成像过程期间在至少两个不同能量谱之间选择性交替切换的能谱的辐射。 该系统还包括检测穿过检查区域的辐射的能量分辨检测器阵列(116,D1,D2,D3)。 能量分辨检测器阵列(116,D1,D2,D3)通过至少两个不同的能量范围来解析检测到的辐射,并且产生作为发射能量谱和能量范围的函数的能量分辨的输出信号。 该系统还包括执行能量分辨输出信号的频谱重建的重建器(126)。 在另一个实施例中,检测器阵列(116)包括光子计数检测器阵列(116)。
    • 4. 发明申请
    • SPECTRAL CT
    • 光谱CT
    • US20110096892A1
    • 2011-04-28
    • US12996985
    • 2009-06-01
    • Peter ForthmannUdo Van StevendaalEwald RoesslMichael GrassRoland ProksaJens-Peter Schlomka
    • Peter ForthmannUdo Van StevendaalEwald RoesslMichael GrassRoland ProksaJens-Peter Schlomka
    • H05G1/60
    • A61B6/405A61B6/032A61B6/4014A61B6/4035A61B6/4042A61B6/4241A61B6/482
    • An imaging system includes a radiation source (106, T1, T2, T3) that rotates about an examination region and emits radiation that traverses the examination region. The radiation source (106, T1, T2, T3) emits radiation having an energy spectrum that is selectively alternately switched between at least two different energy spectra during an imaging procedure. The system further includes an energy-resolving detector array (116, D1, D2, D3) that detects radiation traversing the examination region. The energy-resolving detector array (116, D1, D2, D3) resolves the detected radiation over at least two different energy ranges and produces energy-resolved output signals as a function of both emission energy spectrum and energy range. The system further includes a reconstructor (126) that performs a spectral reconstruction of the energy-resolved output signals. In another embodiment, the detector array (116) includes a photon-counting detector array (116).
    • 成像系统包括围绕检查区域旋转并且发射穿过检查区域的辐射的辐射源(106,T1,T2,T3)。 辐射源(106,T1,T2,T3)发射具有在成像过程期间在至少两个不同能量谱之间选择性交替切换的能谱的辐射。 该系统还包括检测穿过检查区域的辐射的能量分辨检测器阵列(116,D1,D2,D3)。 能量分辨检测器阵列(116,D1,D2,D3)通过至少两个不同的能量范围来解析检测到的辐射,并且产生作为发射能量谱和能量范围的函数的能量分辨的输出信号。 该系统还包括执行能量分辨输出信号的频谱重建的重建器(126)。 在另一个实施例中,检测器阵列(116)包括光子计数检测器阵列(116)。