Dedicated cardiac SPECT systems do not typically include an integrated CT scanner and thus attenuation correction requires registration of separately acquired transmission scans. Data consistency conditions are equations that express the redundancy between projections while taking into account the attenuation effects. This study assessed the feasibility of applying exponential data consistency conditions to rebinned pinhole projections for attenuation-map registration in pinhole cardiac SPECT.

中文翻译：

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使用指数数据一致性条件在针孔心脏 SPECT 中对齐衰减图的可行性

专用心脏 SPECT 系统通常不包括集成 CT 扫描仪，因此衰减校正需要对单独采集的透射扫描进行配准。数据一致性条件是在考虑衰减效应的同时表达投影之间冗余的方程。本研究评估了将指数数据一致性条件应用于重新组合针孔投影以在针孔心脏 SPECT 中进行衰减图配准的可行性。