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Attenuation correction in nuclear medicine studies by simultaneous transmission and emission data measurement and estimation of emission-to-transmission crosstalk
Attenuation correction in nuclear medicine studies by simultaneous transmission and emission data measurement and estimation of emission-to-transmission crosstalk
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机译:核医学研究中的衰减校正,方法是同时进行发射和发射数据测量以及发射到发射的串扰估计
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摘要
Attenuation correction in SPECT studies such as cardiac function imaging is carried out using an iterative statistically-based transmission projection reconstruction algorithm that is capable of modeling overlapping transmission beams from a line source array of radiation emitters. Downscatter between emission and transmission photons is additively corrected for in the algorithm. Optimal line source spacing techniques and source collimation angle selection are derived to improve performance and reduce cost.
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