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CN106232008B 计算机断层摄影(CT)混合数据采集 有权

计算机断层摄影(CT)混合数据采集
摘要：
一种成像系统(200)包括发射横贯检查区域的辐射的辐射源(208)。所述成像系统还包括混合数据采集系统(212)，其接收横贯所述检查区域的辐射。所述混合数据采集系统包括跨全视场的子部分的相位对比子部分(304)。所述混合数据采集系统还包括跨所述全视场的积分部分(302、702、804、806、902)或谱部分(402、704、706、803、1002)中的至少一个。所述混合数据采集系统生成相位对比信号并且生成积分信号或谱信号中的至少一个。所述成像系统还包括重建器(216)，其重建所述相位对比信号以及所述积分信号或所述谱信号中的至少一个，以生成指示所述检查区域的体积图像数据。
摘要（英）：

An imaging system (200) includes a radiation source (208) that emits radiation that traverses an examination region. The imaging system further includes a hybrid data acquisition system (212) that receives radiation that traverses the examination region. The hybrid data acquisition system includes a phase-contrast sub-portion (304) spanning a sub-portion of a full field of view. The hybrid data acquisition system further includes at least one of an integrating portion (302, 702, 804, 806, 902) or a spectral portion (402, 704, 706, 802, 1002) spanning the full field of view. The hybrid data acquisition system generates a phase-contrast signal and at least one of an integration signal or a spectral signal. The imaging system further includes a reconstructor (216) that reconstructs the phase-contrast signal and at least one of the integration single or the spectral signal to generate volumetric image data indicative of the examination region.

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